diff --git a/.github/workflows/quality-assurance.yml b/.github/workflows/quality-assurance.yml
index 3649ab8..6dbdeb1 100644
--- a/.github/workflows/quality-assurance.yml
+++ b/.github/workflows/quality-assurance.yml
@@ -20,12 +20,12 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        php: [ '7.2', '7.3', '7.4', '8.0' ]
+        php: [ '7.4', '8.0', '8.1', '8.2' ]
         composer-flags: [ '' ]
         upgrade-aws-sdk: [ 'no' ]
         phpunit-flags: [ '--coverage-text' ]
         include:
-          - php: '7.2'
+          - php: '7.4'
             composer-flags: '--prefer-lowest'
             phpunit-flags: '--no-coverage'
     steps:
diff --git a/composer.json b/composer.json
index 80ca1af..cd75bee 100644
--- a/composer.json
+++ b/composer.json
@@ -13,11 +13,11 @@
         "phpstan": "vendor/bin/phpstan analyse -l 6 src"
     },
     "require": {
-        "php": "^7.2 || ^8.0",
+        "php": "^7.4 || ^8.0",
         "ext-fileinfo": "*"
     },
     "require-dev": {
-        "phpunit/phpunit": "^8.5.8 || ^9.3",
+        "phpunit/phpunit": "^8.5.8 || ^9.3 || ^10.0",
         "phpstan/phpstan": "^0.12.68",
         "friendsofphp/php-cs-fixer": "^3.2"
     },
@@ -28,7 +28,7 @@
     },
     "config": {
         "platform": {
-            "php": "7.2.0"
+            "php": "7.4.0"
         }
     }
 }
diff --git a/src/ExtensionLookup.php b/src/ExtensionLookup.php
new file mode 100644
index 0000000..14b89df
--- /dev/null
+++ b/src/ExtensionLookup.php
@@ -0,0 +1,14 @@
+<?php
+declare(strict_types=1);
+
+namespace League\MimeTypeDetection;
+
+interface ExtensionLookup
+{
+    public function lookupExtension(string $mimetype): ?string;
+
+    /**
+     * @return string[]
+     */
+    public function lookupAllExtensions(string $mimetype): array;
+}
diff --git a/src/ExtensionMimeTypeDetector.php b/src/ExtensionMimeTypeDetector.php
index 92b6b1c..cd34462 100644
--- a/src/ExtensionMimeTypeDetector.php
+++ b/src/ExtensionMimeTypeDetector.php
@@ -6,7 +6,7 @@
 
 use const PATHINFO_EXTENSION;
 
-class ExtensionMimeTypeDetector implements MimeTypeDetector
+class ExtensionMimeTypeDetector implements MimeTypeDetector, ExtensionLookup
 {
     /**
      * @var ExtensionToMimeTypeMap
@@ -39,4 +39,18 @@ public function detectMimeTypeFromBuffer(string $contents): ?string
     {
         return null;
     }
+
+    public function lookupExtension(string $mimetype): ?string
+    {
+        return $this->extensions instanceof ExtensionLookup
+            ? $this->extensions->lookupExtension($mimetype)
+            : null;
+    }
+
+    public function lookupAllExtensions(string $mimetype): array
+    {
+        return $this->extensions instanceof ExtensionLookup
+            ? $this->extensions->lookupAllExtensions($mimetype)
+            : [];
+    }
 }
diff --git a/src/ExtensionMimeTypeDetectorTest.php b/src/ExtensionMimeTypeDetectorTest.php
index c47077d..aa1e611 100644
--- a/src/ExtensionMimeTypeDetectorTest.php
+++ b/src/ExtensionMimeTypeDetectorTest.php
@@ -11,6 +11,7 @@ class ExtensionMimeTypeDetectorTest extends TestCase
 {
     /**
      * @test
+     *
      * @dataProvider expectedLookupResults
      */
     public function looking_up_mimetype(string $path, ?string $expectedMimeType): void
@@ -35,7 +36,7 @@ public function detecting_from_bugger_always_returns_null(): void
         $this->assertNull($mimeType);
     }
 
-    public function expectedLookupResults(): Generator
+    public static function expectedLookupResults(): Generator
     {
         yield ['thing.jpg', 'image/jpeg'];
         yield ['file.svg', 'image/svg+xml'];
diff --git a/src/FinfoMimeTypeDetector.php b/src/FinfoMimeTypeDetector.php
index ba91938..8084f92 100644
--- a/src/FinfoMimeTypeDetector.php
+++ b/src/FinfoMimeTypeDetector.php
@@ -9,7 +9,7 @@
 use const PATHINFO_EXTENSION;
 use finfo;
 
-class FinfoMimeTypeDetector implements MimeTypeDetector
+class FinfoMimeTypeDetector implements MimeTypeDetector, ExtensionLookup
 {
     private const INCONCLUSIVE_MIME_TYPES = [
         'application/x-empty',
@@ -89,4 +89,18 @@ private function takeSample(string $contents): string
 
         return (string) substr($contents, 0, $this->bufferSampleSize);
     }
+
+    public function lookupExtension(string $mimetype): ?string
+    {
+        return $this->extensionMap instanceof ExtensionLookup
+            ? $this->extensionMap->lookupExtension($mimetype)
+            : null;
+    }
+
+    public function lookupAllExtensions(string $mimetype): array
+    {
+        return $this->extensionMap instanceof ExtensionLookup
+            ? $this->extensionMap->lookupAllExtensions($mimetype)
+            : [];
+    }
 }
diff --git a/src/GeneratedExtensionToMimeTypeMap.php b/src/GeneratedExtensionToMimeTypeMap.php
index 6a7de98..72f515f 100644
--- a/src/GeneratedExtensionToMimeTypeMap.php
+++ b/src/GeneratedExtensionToMimeTypeMap.php
@@ -4,10 +4,10 @@
 
 namespace League\MimeTypeDetection;
 
-class GeneratedExtensionToMimeTypeMap implements ExtensionToMimeTypeMap
+class GeneratedExtensionToMimeTypeMap implements ExtensionToMimeTypeMap, ExtensionLookup
 {
     /**
-     * @var string[]
+     * @var array<string, string>
      *
      * @internal
      */
@@ -23,7 +23,7 @@ class GeneratedExtensionToMimeTypeMap implements ExtensionToMimeTypeMap
         '7zip' => 'application/x-7z-compressed',
         '123' => 'application/vnd.lotus-1-2-3',
         'aab' => 'application/x-authorware-bin',
-        'aac' => 'audio/x-acc',
+        'aac' => 'audio/acc',
         'aam' => 'application/x-authorware-map',
         'aas' => 'application/x-authorware-seg',
         'abw' => 'application/x-abiword',
@@ -1242,8 +1242,1050 @@ class GeneratedExtensionToMimeTypeMap implements ExtensionToMimeTypeMap
         'zsh' => 'text/x-scriptzsh',
     ];
 
+    /**
+     * @var array<string, string>
+     *
+     * @internal
+     */
+    public const EXTENSIONS_FOR_MIME_TIMES = [
+        'application/andrew-inset' => ['ez'],
+        'application/appinstaller' => ['appinstaller'],
+        'application/applixware' => ['aw'],
+        'application/appx' => ['appx'],
+        'application/appxbundle' => ['appxbundle'],
+        'application/atom+xml' => ['atom'],
+        'application/atomcat+xml' => ['atomcat'],
+        'application/atomdeleted+xml' => ['atomdeleted'],
+        'application/atomsvc+xml' => ['atomsvc'],
+        'application/atsc-dwd+xml' => ['dwd'],
+        'application/atsc-held+xml' => ['held'],
+        'application/atsc-rsat+xml' => ['rsat'],
+        'application/automationml-aml+xml' => ['aml'],
+        'application/automationml-amlx+zip' => ['amlx'],
+        'application/bdoc' => ['bdoc'],
+        'application/calendar+xml' => ['xcs'],
+        'application/ccxml+xml' => ['ccxml'],
+        'application/cdfx+xml' => ['cdfx'],
+        'application/cdmi-capability' => ['cdmia'],
+        'application/cdmi-container' => ['cdmic'],
+        'application/cdmi-domain' => ['cdmid'],
+        'application/cdmi-object' => ['cdmio'],
+        'application/cdmi-queue' => ['cdmiq'],
+        'application/cpl+xml' => ['cpl'],
+        'application/cu-seeme' => ['cu'],
+        'application/cwl' => ['cwl'],
+        'application/dash+xml' => ['mpd'],
+        'application/dash-patch+xml' => ['mpp'],
+        'application/davmount+xml' => ['davmount'],
+        'application/docbook+xml' => ['dbk'],
+        'application/dssc+der' => ['dssc'],
+        'application/dssc+xml' => ['xdssc'],
+        'application/ecmascript' => ['ecma'],
+        'application/emma+xml' => ['emma'],
+        'application/emotionml+xml' => ['emotionml'],
+        'application/epub+zip' => ['epub'],
+        'application/exi' => ['exi'],
+        'application/express' => ['exp'],
+        'application/fdf' => ['fdf'],
+        'application/fdt+xml' => ['fdt'],
+        'application/font-tdpfr' => ['pfr'],
+        'application/geo+json' => ['geojson'],
+        'application/gml+xml' => ['gml'],
+        'application/gpx+xml' => ['gpx'],
+        'application/gxf' => ['gxf'],
+        'application/gzip' => ['gz', 'gzip'],
+        'application/hjson' => ['hjson'],
+        'application/hyperstudio' => ['stk'],
+        'application/inkml+xml' => ['ink', 'inkml'],
+        'application/ipfix' => ['ipfix'],
+        'application/its+xml' => ['its'],
+        'application/java-archive' => ['jar', 'war', 'ear'],
+        'application/java-serialized-object' => ['ser'],
+        'application/java-vm' => ['class'],
+        'application/javascript' => ['js'],
+        'application/json' => ['json', 'map'],
+        'application/json5' => ['json5'],
+        'application/jsonml+json' => ['jsonml'],
+        'application/ld+json' => ['jsonld'],
+        'application/lgr+xml' => ['lgr'],
+        'application/lost+xml' => ['lostxml'],
+        'application/mac-binhex40' => ['hqx'],
+        'application/mac-compactpro' => ['cpt'],
+        'application/mads+xml' => ['mads'],
+        'application/manifest+json' => ['webmanifest'],
+        'application/marc' => ['mrc'],
+        'application/marcxml+xml' => ['mrcx'],
+        'application/mathematica' => ['ma', 'nb', 'mb'],
+        'application/mathml+xml' => ['mathml'],
+        'application/mbox' => ['mbox'],
+        'application/media-policy-dataset+xml' => ['mpf'],
+        'application/mediaservercontrol+xml' => ['mscml'],
+        'application/metalink+xml' => ['metalink'],
+        'application/metalink4+xml' => ['meta4'],
+        'application/mets+xml' => ['mets'],
+        'application/mmt-aei+xml' => ['maei'],
+        'application/mmt-usd+xml' => ['musd'],
+        'application/mods+xml' => ['mods'],
+        'application/mp21' => ['m21', 'mp21'],
+        'application/mp4' => ['mp4', 'mpg4', 'mp4s', 'm4p'],
+        'application/msix' => ['msix'],
+        'application/msixbundle' => ['msixbundle'],
+        'application/msword' => ['doc', 'dot', 'word'],
+        'application/mxf' => ['mxf'],
+        'application/n-quads' => ['nq'],
+        'application/n-triples' => ['nt'],
+        'application/node' => ['cjs'],
+        'application/octet-stream' => ['bin', 'dms', 'lrf', 'mar', 'so', 'dist', 'distz', 'pkg', 'bpk', 'dump', 'elc', 'deploy', 'exe', 'dll', 'deb', 'dmg', 'iso', 'img', 'msi', 'msp', 'msm', 'buffer', 'phar', 'lha', 'lzh', 'class', 'sea', 'dmn', 'bpmn', 'kdb', 'sst', 'csr'],
+        'application/oda' => ['oda'],
+        'application/oebps-package+xml' => ['opf'],
+        'application/ogg' => ['ogx'],
+        'application/omdoc+xml' => ['omdoc'],
+        'application/onenote' => ['onetoc', 'onetoc2', 'onetmp', 'onepkg'],
+        'application/oxps' => ['oxps'],
+        'application/p2p-overlay+xml' => ['relo'],
+        'application/patch-ops-error+xml' => ['xer'],
+        'application/pdf' => ['pdf', 'ai'],
+        'application/pgp-encrypted' => ['pgp'],
+        'application/pgp-keys' => ['asc'],
+        'application/pgp-signature' => ['sig', 'asc'],
+        'application/pics-rules' => ['prf'],
+        'application/pkcs10' => ['p10'],
+        'application/pkcs7-mime' => ['p7m', 'p7c'],
+        'application/pkcs7-signature' => ['p7s'],
+        'application/pkcs8' => ['p8'],
+        'application/pkix-attr-cert' => ['ac'],
+        'application/pkix-cert' => ['cer'],
+        'application/pkix-crl' => ['crl'],
+        'application/pkix-pkipath' => ['pkipath'],
+        'application/pkixcmp' => ['pki'],
+        'application/pls+xml' => ['pls'],
+        'application/postscript' => ['ai', 'eps', 'ps'],
+        'application/provenance+xml' => ['provx'],
+        'application/prs.cww' => ['cww'],
+        'application/prs.xsf+xml' => ['xsf'],
+        'application/pskc+xml' => ['pskcxml'],
+        'application/raml+yaml' => ['raml'],
+        'application/rdf+xml' => ['rdf', 'owl'],
+        'application/reginfo+xml' => ['rif'],
+        'application/relax-ng-compact-syntax' => ['rnc'],
+        'application/resource-lists+xml' => ['rl'],
+        'application/resource-lists-diff+xml' => ['rld'],
+        'application/rls-services+xml' => ['rs'],
+        'application/route-apd+xml' => ['rapd'],
+        'application/route-s-tsid+xml' => ['sls'],
+        'application/route-usd+xml' => ['rusd'],
+        'application/rpki-ghostbusters' => ['gbr'],
+        'application/rpki-manifest' => ['mft'],
+        'application/rpki-roa' => ['roa'],
+        'application/rsd+xml' => ['rsd'],
+        'application/rss+xml' => ['rss'],
+        'application/rtf' => ['rtf'],
+        'application/sbml+xml' => ['sbml'],
+        'application/scvp-cv-request' => ['scq'],
+        'application/scvp-cv-response' => ['scs'],
+        'application/scvp-vp-request' => ['spq'],
+        'application/scvp-vp-response' => ['spp'],
+        'application/sdp' => ['sdp'],
+        'application/senml+xml' => ['senmlx'],
+        'application/sensml+xml' => ['sensmlx'],
+        'application/set-payment-initiation' => ['setpay'],
+        'application/set-registration-initiation' => ['setreg'],
+        'application/shf+xml' => ['shf'],
+        'application/sieve' => ['siv', 'sieve'],
+        'application/smil+xml' => ['smi', 'smil'],
+        'application/sparql-query' => ['rq'],
+        'application/sparql-results+xml' => ['srx'],
+        'application/sql' => ['sql'],
+        'application/srgs' => ['gram'],
+        'application/srgs+xml' => ['grxml'],
+        'application/sru+xml' => ['sru'],
+        'application/ssdl+xml' => ['ssdl'],
+        'application/ssml+xml' => ['ssml'],
+        'application/swid+xml' => ['swidtag'],
+        'application/tei+xml' => ['tei', 'teicorpus'],
+        'application/thraud+xml' => ['tfi'],
+        'application/timestamped-data' => ['tsd'],
+        'application/toml' => ['toml'],
+        'application/trig' => ['trig'],
+        'application/ttml+xml' => ['ttml'],
+        'application/ubjson' => ['ubj'],
+        'application/urc-ressheet+xml' => ['rsheet'],
+        'application/urc-targetdesc+xml' => ['td'],
+        'application/vnd.1000minds.decision-model+xml' => ['1km'],
+        'application/vnd.3gpp.pic-bw-large' => ['plb'],
+        'application/vnd.3gpp.pic-bw-small' => ['psb'],
+        'application/vnd.3gpp.pic-bw-var' => ['pvb'],
+        'application/vnd.3gpp2.tcap' => ['tcap'],
+        'application/vnd.3m.post-it-notes' => ['pwn'],
+        'application/vnd.accpac.simply.aso' => ['aso'],
+        'application/vnd.accpac.simply.imp' => ['imp'],
+        'application/vnd.acucobol' => ['acu'],
+        'application/vnd.acucorp' => ['atc', 'acutc'],
+        'application/vnd.adobe.air-application-installer-package+zip' => ['air'],
+        'application/vnd.adobe.formscentral.fcdt' => ['fcdt'],
+        'application/vnd.adobe.fxp' => ['fxp', 'fxpl'],
+        'application/vnd.adobe.xdp+xml' => ['xdp'],
+        'application/vnd.adobe.xfdf' => ['xfdf'],
+        'application/vnd.age' => ['age'],
+        'application/vnd.ahead.space' => ['ahead'],
+        'application/vnd.airzip.filesecure.azf' => ['azf'],
+        'application/vnd.airzip.filesecure.azs' => ['azs'],
+        'application/vnd.amazon.ebook' => ['azw'],
+        'application/vnd.americandynamics.acc' => ['acc'],
+        'application/vnd.amiga.ami' => ['ami'],
+        'application/vnd.android.package-archive' => ['apk'],
+        'application/vnd.anser-web-certificate-issue-initiation' => ['cii'],
+        'application/vnd.anser-web-funds-transfer-initiation' => ['fti'],
+        'application/vnd.antix.game-component' => ['atx'],
+        'application/vnd.apple.installer+xml' => ['mpkg'],
+        'application/vnd.apple.keynote' => ['key'],
+        'application/vnd.apple.mpegurl' => ['m3u8'],
+        'application/vnd.apple.numbers' => ['numbers'],
+        'application/vnd.apple.pages' => ['pages'],
+        'application/vnd.apple.pkpass' => ['pkpass'],
+        'application/vnd.aristanetworks.swi' => ['swi'],
+        'application/vnd.astraea-software.iota' => ['iota'],
+        'application/vnd.audiograph' => ['aep'],
+        'application/vnd.balsamiq.bmml+xml' => ['bmml'],
+        'application/vnd.blueice.multipass' => ['mpm'],
+        'application/vnd.bmi' => ['bmi'],
+        'application/vnd.businessobjects' => ['rep'],
+        'application/vnd.chemdraw+xml' => ['cdxml'],
+        'application/vnd.chipnuts.karaoke-mmd' => ['mmd'],
+        'application/vnd.cinderella' => ['cdy'],
+        'application/vnd.citationstyles.style+xml' => ['csl'],
+        'application/vnd.claymore' => ['cla'],
+        'application/vnd.cloanto.rp9' => ['rp9'],
+        'application/vnd.clonk.c4group' => ['c4g', 'c4d', 'c4f', 'c4p', 'c4u'],
+        'application/vnd.cluetrust.cartomobile-config' => ['c11amc'],
+        'application/vnd.cluetrust.cartomobile-config-pkg' => ['c11amz'],
+        'application/vnd.commonspace' => ['csp'],
+        'application/vnd.contact.cmsg' => ['cdbcmsg'],
+        'application/vnd.cosmocaller' => ['cmc'],
+        'application/vnd.crick.clicker' => ['clkx'],
+        'application/vnd.crick.clicker.keyboard' => ['clkk'],
+        'application/vnd.crick.clicker.palette' => ['clkp'],
+        'application/vnd.crick.clicker.template' => ['clkt'],
+        'application/vnd.crick.clicker.wordbank' => ['clkw'],
+        'application/vnd.criticaltools.wbs+xml' => ['wbs'],
+        'application/vnd.ctc-posml' => ['pml'],
+        'application/vnd.cups-ppd' => ['ppd'],
+        'application/vnd.curl.car' => ['car'],
+        'application/vnd.curl.pcurl' => ['pcurl'],
+        'application/vnd.dart' => ['dart'],
+        'application/vnd.data-vision.rdz' => ['rdz'],
+        'application/vnd.dbf' => ['dbf'],
+        'application/vnd.dece.data' => ['uvf', 'uvvf', 'uvd', 'uvvd'],
+        'application/vnd.dece.ttml+xml' => ['uvt', 'uvvt'],
+        'application/vnd.dece.unspecified' => ['uvx', 'uvvx'],
+        'application/vnd.dece.zip' => ['uvz', 'uvvz'],
+        'application/vnd.denovo.fcselayout-link' => ['fe_launch'],
+        'application/vnd.dna' => ['dna'],
+        'application/vnd.dolby.mlp' => ['mlp'],
+        'application/vnd.dpgraph' => ['dpg'],
+        'application/vnd.dreamfactory' => ['dfac'],
+        'application/vnd.ds-keypoint' => ['kpxx'],
+        'application/vnd.dvb.ait' => ['ait'],
+        'application/vnd.dvb.service' => ['svc'],
+        'application/vnd.dynageo' => ['geo'],
+        'application/vnd.ecowin.chart' => ['mag'],
+        'application/vnd.enliven' => ['nml'],
+        'application/vnd.epson.esf' => ['esf'],
+        'application/vnd.epson.msf' => ['msf'],
+        'application/vnd.epson.quickanime' => ['qam'],
+        'application/vnd.epson.salt' => ['slt'],
+        'application/vnd.epson.ssf' => ['ssf'],
+        'application/vnd.eszigno3+xml' => ['es3', 'et3'],
+        'application/vnd.ezpix-album' => ['ez2'],
+        'application/vnd.ezpix-package' => ['ez3'],
+        'application/vnd.fdf' => ['fdf'],
+        'application/vnd.fdsn.mseed' => ['mseed'],
+        'application/vnd.fdsn.seed' => ['seed', 'dataless'],
+        'application/vnd.flographit' => ['gph'],
+        'application/vnd.fluxtime.clip' => ['ftc'],
+        'application/vnd.framemaker' => ['fm', 'frame', 'maker', 'book'],
+        'application/vnd.frogans.fnc' => ['fnc'],
+        'application/vnd.frogans.ltf' => ['ltf'],
+        'application/vnd.fsc.weblaunch' => ['fsc'],
+        'application/vnd.fujitsu.oasys' => ['oas'],
+        'application/vnd.fujitsu.oasys2' => ['oa2'],
+        'application/vnd.fujitsu.oasys3' => ['oa3'],
+        'application/vnd.fujitsu.oasysgp' => ['fg5'],
+        'application/vnd.fujitsu.oasysprs' => ['bh2'],
+        'application/vnd.fujixerox.ddd' => ['ddd'],
+        'application/vnd.fujixerox.docuworks' => ['xdw'],
+        'application/vnd.fujixerox.docuworks.binder' => ['xbd'],
+        'application/vnd.fuzzysheet' => ['fzs'],
+        'application/vnd.genomatix.tuxedo' => ['txd'],
+        'application/vnd.geogebra.file' => ['ggb'],
+        'application/vnd.geogebra.tool' => ['ggt'],
+        'application/vnd.geometry-explorer' => ['gex', 'gre'],
+        'application/vnd.geonext' => ['gxt'],
+        'application/vnd.geoplan' => ['g2w'],
+        'application/vnd.geospace' => ['g3w'],
+        'application/vnd.gmx' => ['gmx'],
+        'application/vnd.google-apps.document' => ['gdoc'],
+        'application/vnd.google-apps.presentation' => ['gslides'],
+        'application/vnd.google-apps.spreadsheet' => ['gsheet'],
+        'application/vnd.google-earth.kml+xml' => ['kml'],
+        'application/vnd.google-earth.kmz' => ['kmz'],
+        'application/vnd.grafeq' => ['gqf', 'gqs'],
+        'application/vnd.groove-account' => ['gac'],
+        'application/vnd.groove-help' => ['ghf'],
+        'application/vnd.groove-identity-message' => ['gim'],
+        'application/vnd.groove-injector' => ['grv'],
+        'application/vnd.groove-tool-message' => ['gtm'],
+        'application/vnd.groove-tool-template' => ['tpl'],
+        'application/vnd.groove-vcard' => ['vcg'],
+        'application/vnd.hal+xml' => ['hal'],
+        'application/vnd.handheld-entertainment+xml' => ['zmm'],
+        'application/vnd.hbci' => ['hbci'],
+        'application/vnd.hhe.lesson-player' => ['les'],
+        'application/vnd.hp-hpgl' => ['hpgl'],
+        'application/vnd.hp-hpid' => ['hpid'],
+        'application/vnd.hp-hps' => ['hps'],
+        'application/vnd.hp-jlyt' => ['jlt'],
+        'application/vnd.hp-pcl' => ['pcl'],
+        'application/vnd.hp-pclxl' => ['pclxl'],
+        'application/vnd.hydrostatix.sof-data' => ['sfd-hdstx'],
+        'application/vnd.ibm.minipay' => ['mpy'],
+        'application/vnd.ibm.modcap' => ['afp', 'listafp', 'list3820'],
+        'application/vnd.ibm.rights-management' => ['irm'],
+        'application/vnd.ibm.secure-container' => ['sc'],
+        'application/vnd.iccprofile' => ['icc', 'icm'],
+        'application/vnd.igloader' => ['igl'],
+        'application/vnd.immervision-ivp' => ['ivp'],
+        'application/vnd.immervision-ivu' => ['ivu'],
+        'application/vnd.insors.igm' => ['igm'],
+        'application/vnd.intercon.formnet' => ['xpw', 'xpx'],
+        'application/vnd.intergeo' => ['i2g'],
+        'application/vnd.intu.qbo' => ['qbo'],
+        'application/vnd.intu.qfx' => ['qfx'],
+        'application/vnd.ipunplugged.rcprofile' => ['rcprofile'],
+        'application/vnd.irepository.package+xml' => ['irp'],
+        'application/vnd.is-xpr' => ['xpr'],
+        'application/vnd.isac.fcs' => ['fcs'],
+        'application/vnd.jam' => ['jam'],
+        'application/vnd.jcp.javame.midlet-rms' => ['rms'],
+        'application/vnd.jisp' => ['jisp'],
+        'application/vnd.joost.joda-archive' => ['joda'],
+        'application/vnd.kahootz' => ['ktz', 'ktr'],
+        'application/vnd.kde.karbon' => ['karbon'],
+        'application/vnd.kde.kchart' => ['chrt'],
+        'application/vnd.kde.kformula' => ['kfo'],
+        'application/vnd.kde.kivio' => ['flw'],
+        'application/vnd.kde.kontour' => ['kon'],
+        'application/vnd.kde.kpresenter' => ['kpr', 'kpt'],
+        'application/vnd.kde.kspread' => ['ksp'],
+        'application/vnd.kde.kword' => ['kwd', 'kwt'],
+        'application/vnd.kenameaapp' => ['htke'],
+        'application/vnd.kidspiration' => ['kia'],
+        'application/vnd.kinar' => ['kne', 'knp'],
+        'application/vnd.koan' => ['skp', 'skd', 'skt', 'skm'],
+        'application/vnd.kodak-descriptor' => ['sse'],
+        'application/vnd.las.las+xml' => ['lasxml'],
+        'application/vnd.llamagraphics.life-balance.desktop' => ['lbd'],
+        'application/vnd.llamagraphics.life-balance.exchange+xml' => ['lbe'],
+        'application/vnd.lotus-1-2-3' => ['123'],
+        'application/vnd.lotus-approach' => ['apr'],
+        'application/vnd.lotus-freelance' => ['pre'],
+        'application/vnd.lotus-notes' => ['nsf'],
+        'application/vnd.lotus-organizer' => ['org'],
+        'application/vnd.lotus-screencam' => ['scm'],
+        'application/vnd.lotus-wordpro' => ['lwp'],
+        'application/vnd.macports.portpkg' => ['portpkg'],
+        'application/vnd.mapbox-vector-tile' => ['mvt'],
+        'application/vnd.mcd' => ['mcd'],
+        'application/vnd.medcalcdata' => ['mc1'],
+        'application/vnd.mediastation.cdkey' => ['cdkey'],
+        'application/vnd.mfer' => ['mwf'],
+        'application/vnd.mfmp' => ['mfm'],
+        'application/vnd.micrografx.flo' => ['flo'],
+        'application/vnd.micrografx.igx' => ['igx'],
+        'application/vnd.mif' => ['mif'],
+        'application/vnd.mobius.daf' => ['daf'],
+        'application/vnd.mobius.dis' => ['dis'],
+        'application/vnd.mobius.mbk' => ['mbk'],
+        'application/vnd.mobius.mqy' => ['mqy'],
+        'application/vnd.mobius.msl' => ['msl'],
+        'application/vnd.mobius.plc' => ['plc'],
+        'application/vnd.mobius.txf' => ['txf'],
+        'application/vnd.mophun.application' => ['mpn'],
+        'application/vnd.mophun.certificate' => ['mpc'],
+        'application/vnd.mozilla.xul+xml' => ['xul'],
+        'application/vnd.ms-artgalry' => ['cil'],
+        'application/vnd.ms-cab-compressed' => ['cab'],
+        'application/vnd.ms-excel' => ['xls', 'xlm', 'xla', 'xlc', 'xlt', 'xlw'],
+        'application/vnd.ms-excel.addin.macroenabled.12' => ['xlam'],
+        'application/vnd.ms-excel.sheet.binary.macroenabled.12' => ['xlsb'],
+        'application/vnd.ms-excel.sheet.macroenabled.12' => ['xlsm'],
+        'application/vnd.ms-excel.template.macroenabled.12' => ['xltm'],
+        'application/vnd.ms-fontobject' => ['eot'],
+        'application/vnd.ms-htmlhelp' => ['chm'],
+        'application/vnd.ms-ims' => ['ims'],
+        'application/vnd.ms-lrm' => ['lrm'],
+        'application/vnd.ms-officetheme' => ['thmx'],
+        'application/vnd.ms-outlook' => ['msg'],
+        'application/vnd.ms-pki.seccat' => ['cat'],
+        'application/vnd.ms-pki.stl' => ['stl'],
+        'application/vnd.ms-powerpoint' => ['ppt', 'pps', 'pot', 'ppa'],
+        'application/vnd.ms-powerpoint.addin.macroenabled.12' => ['ppam'],
+        'application/vnd.ms-powerpoint.presentation.macroenabled.12' => ['pptm'],
+        'application/vnd.ms-powerpoint.slide.macroenabled.12' => ['sldm'],
+        'application/vnd.ms-powerpoint.slideshow.macroenabled.12' => ['ppsm'],
+        'application/vnd.ms-powerpoint.template.macroenabled.12' => ['potm'],
+        'application/vnd.ms-project' => ['mpp', 'mpt'],
+        'application/vnd.ms-word.document.macroenabled.12' => ['docm'],
+        'application/vnd.ms-word.template.macroenabled.12' => ['dotm'],
+        'application/vnd.ms-works' => ['wps', 'wks', 'wcm', 'wdb'],
+        'application/vnd.ms-wpl' => ['wpl'],
+        'application/vnd.ms-xpsdocument' => ['xps'],
+        'application/vnd.mseq' => ['mseq'],
+        'application/vnd.musician' => ['mus'],
+        'application/vnd.muvee.style' => ['msty'],
+        'application/vnd.mynfc' => ['taglet'],
+        'application/vnd.neurolanguage.nlu' => ['nlu'],
+        'application/vnd.nitf' => ['ntf', 'nitf'],
+        'application/vnd.noblenet-directory' => ['nnd'],
+        'application/vnd.noblenet-sealer' => ['nns'],
+        'application/vnd.noblenet-web' => ['nnw'],
+        'application/vnd.nokia.n-gage.ac+xml' => ['ac'],
+        'application/vnd.nokia.n-gage.data' => ['ngdat'],
+        'application/vnd.nokia.n-gage.symbian.install' => ['n-gage'],
+        'application/vnd.nokia.radio-preset' => ['rpst'],
+        'application/vnd.nokia.radio-presets' => ['rpss'],
+        'application/vnd.novadigm.edm' => ['edm'],
+        'application/vnd.novadigm.edx' => ['edx'],
+        'application/vnd.novadigm.ext' => ['ext'],
+        'application/vnd.oasis.opendocument.chart' => ['odc'],
+        'application/vnd.oasis.opendocument.chart-template' => ['otc'],
+        'application/vnd.oasis.opendocument.database' => ['odb'],
+        'application/vnd.oasis.opendocument.formula' => ['odf'],
+        'application/vnd.oasis.opendocument.formula-template' => ['odft'],
+        'application/vnd.oasis.opendocument.graphics' => ['odg'],
+        'application/vnd.oasis.opendocument.graphics-template' => ['otg'],
+        'application/vnd.oasis.opendocument.image' => ['odi'],
+        'application/vnd.oasis.opendocument.image-template' => ['oti'],
+        'application/vnd.oasis.opendocument.presentation' => ['odp'],
+        'application/vnd.oasis.opendocument.presentation-template' => ['otp'],
+        'application/vnd.oasis.opendocument.spreadsheet' => ['ods'],
+        'application/vnd.oasis.opendocument.spreadsheet-template' => ['ots'],
+        'application/vnd.oasis.opendocument.text' => ['odt'],
+        'application/vnd.oasis.opendocument.text-master' => ['odm'],
+        'application/vnd.oasis.opendocument.text-template' => ['ott'],
+        'application/vnd.oasis.opendocument.text-web' => ['oth'],
+        'application/vnd.olpc-sugar' => ['xo'],
+        'application/vnd.oma.dd2+xml' => ['dd2'],
+        'application/vnd.openblox.game+xml' => ['obgx'],
+        'application/vnd.openofficeorg.extension' => ['oxt'],
+        'application/vnd.openstreetmap.data+xml' => ['osm'],
+        'application/vnd.openxmlformats-officedocument.presentationml.presentation' => ['pptx'],
+        'application/vnd.openxmlformats-officedocument.presentationml.slide' => ['sldx'],
+        'application/vnd.openxmlformats-officedocument.presentationml.slideshow' => ['ppsx'],
+        'application/vnd.openxmlformats-officedocument.presentationml.template' => ['potx'],
+        'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' => ['xlsx'],
+        'application/vnd.openxmlformats-officedocument.spreadsheetml.template' => ['xltx'],
+        'application/vnd.openxmlformats-officedocument.wordprocessingml.document' => ['docx'],
+        'application/vnd.openxmlformats-officedocument.wordprocessingml.template' => ['dotx'],
+        'application/vnd.osgeo.mapguide.package' => ['mgp'],
+        'application/vnd.osgi.dp' => ['dp'],
+        'application/vnd.osgi.subsystem' => ['esa'],
+        'application/vnd.palm' => ['pdb', 'pqa', 'oprc'],
+        'application/vnd.pawaafile' => ['paw'],
+        'application/vnd.pg.format' => ['str'],
+        'application/vnd.pg.osasli' => ['ei6'],
+        'application/vnd.picsel' => ['efif'],
+        'application/vnd.pmi.widget' => ['wg'],
+        'application/vnd.pocketlearn' => ['plf'],
+        'application/vnd.powerbuilder6' => ['pbd'],
+        'application/vnd.previewsystems.box' => ['box'],
+        'application/vnd.proteus.magazine' => ['mgz'],
+        'application/vnd.publishare-delta-tree' => ['qps'],
+        'application/vnd.pvi.ptid1' => ['ptid'],
+        'application/vnd.pwg-xhtml-print+xml' => ['xhtm'],
+        'application/vnd.quark.quarkxpress' => ['qxd', 'qxt', 'qwd', 'qwt', 'qxl', 'qxb'],
+        'application/vnd.rar' => ['rar'],
+        'application/vnd.realvnc.bed' => ['bed'],
+        'application/vnd.recordare.musicxml' => ['mxl'],
+        'application/vnd.recordare.musicxml+xml' => ['musicxml'],
+        'application/vnd.rig.cryptonote' => ['cryptonote'],
+        'application/vnd.rim.cod' => ['cod'],
+        'application/vnd.rn-realmedia' => ['rm'],
+        'application/vnd.rn-realmedia-vbr' => ['rmvb'],
+        'application/vnd.route66.link66+xml' => ['link66'],
+        'application/vnd.sailingtracker.track' => ['st'],
+        'application/vnd.seemail' => ['see'],
+        'application/vnd.sema' => ['sema'],
+        'application/vnd.semd' => ['semd'],
+        'application/vnd.semf' => ['semf'],
+        'application/vnd.shana.informed.formdata' => ['ifm'],
+        'application/vnd.shana.informed.formtemplate' => ['itp'],
+        'application/vnd.shana.informed.interchange' => ['iif'],
+        'application/vnd.shana.informed.package' => ['ipk'],
+        'application/vnd.simtech-mindmapper' => ['twd', 'twds'],
+        'application/vnd.smaf' => ['mmf'],
+        'application/vnd.smart.teacher' => ['teacher'],
+        'application/vnd.software602.filler.form+xml' => ['fo'],
+        'application/vnd.solent.sdkm+xml' => ['sdkm', 'sdkd'],
+        'application/vnd.spotfire.dxp' => ['dxp'],
+        'application/vnd.spotfire.sfs' => ['sfs'],
+        'application/vnd.stardivision.calc' => ['sdc'],
+        'application/vnd.stardivision.draw' => ['sda'],
+        'application/vnd.stardivision.impress' => ['sdd'],
+        'application/vnd.stardivision.math' => ['smf'],
+        'application/vnd.stardivision.writer' => ['sdw', 'vor'],
+        'application/vnd.stardivision.writer-global' => ['sgl'],
+        'application/vnd.stepmania.package' => ['smzip'],
+        'application/vnd.stepmania.stepchart' => ['sm'],
+        'application/vnd.sun.wadl+xml' => ['wadl'],
+        'application/vnd.sun.xml.calc' => ['sxc'],
+        'application/vnd.sun.xml.calc.template' => ['stc'],
+        'application/vnd.sun.xml.draw' => ['sxd'],
+        'application/vnd.sun.xml.draw.template' => ['std'],
+        'application/vnd.sun.xml.impress' => ['sxi'],
+        'application/vnd.sun.xml.impress.template' => ['sti'],
+        'application/vnd.sun.xml.math' => ['sxm'],
+        'application/vnd.sun.xml.writer' => ['sxw'],
+        'application/vnd.sun.xml.writer.global' => ['sxg'],
+        'application/vnd.sun.xml.writer.template' => ['stw'],
+        'application/vnd.sus-calendar' => ['sus', 'susp'],
+        'application/vnd.svd' => ['svd'],
+        'application/vnd.symbian.install' => ['sis', 'sisx'],
+        'application/vnd.syncml+xml' => ['xsm'],
+        'application/vnd.syncml.dm+wbxml' => ['bdm'],
+        'application/vnd.syncml.dm+xml' => ['xdm'],
+        'application/vnd.syncml.dmddf+xml' => ['ddf'],
+        'application/vnd.tao.intent-module-archive' => ['tao'],
+        'application/vnd.tcpdump.pcap' => ['pcap', 'cap', 'dmp'],
+        'application/vnd.tmobile-livetv' => ['tmo'],
+        'application/vnd.trid.tpt' => ['tpt'],
+        'application/vnd.triscape.mxs' => ['mxs'],
+        'application/vnd.trueapp' => ['tra'],
+        'application/vnd.ufdl' => ['ufd', 'ufdl'],
+        'application/vnd.uiq.theme' => ['utz'],
+        'application/vnd.umajin' => ['umj'],
+        'application/vnd.unity' => ['unityweb'],
+        'application/vnd.uoml+xml' => ['uoml', 'uo'],
+        'application/vnd.vcx' => ['vcx'],
+        'application/vnd.visio' => ['vsd', 'vst', 'vss', 'vsw'],
+        'application/vnd.visionary' => ['vis'],
+        'application/vnd.vsf' => ['vsf'],
+        'application/vnd.wap.wbxml' => ['wbxml'],
+        'application/vnd.wap.wmlc' => ['wmlc'],
+        'application/vnd.wap.wmlscriptc' => ['wmlsc'],
+        'application/vnd.webturbo' => ['wtb'],
+        'application/vnd.wolfram.player' => ['nbp'],
+        'application/vnd.wordperfect' => ['wpd'],
+        'application/vnd.wqd' => ['wqd'],
+        'application/vnd.wt.stf' => ['stf'],
+        'application/vnd.xara' => ['xar'],
+        'application/vnd.xfdl' => ['xfdl'],
+        'application/vnd.yamaha.hv-dic' => ['hvd'],
+        'application/vnd.yamaha.hv-script' => ['hvs'],
+        'application/vnd.yamaha.hv-voice' => ['hvp'],
+        'application/vnd.yamaha.openscoreformat' => ['osf'],
+        'application/vnd.yamaha.openscoreformat.osfpvg+xml' => ['osfpvg'],
+        'application/vnd.yamaha.smaf-audio' => ['saf'],
+        'application/vnd.yamaha.smaf-phrase' => ['spf'],
+        'application/vnd.yellowriver-custom-menu' => ['cmp'],
+        'application/vnd.zul' => ['zir', 'zirz'],
+        'application/vnd.zzazz.deck+xml' => ['zaz'],
+        'application/voicexml+xml' => ['vxml'],
+        'application/wasm' => ['wasm'],
+        'application/watcherinfo+xml' => ['wif'],
+        'application/widget' => ['wgt'],
+        'application/winhlp' => ['hlp'],
+        'application/wsdl+xml' => ['wsdl'],
+        'application/wspolicy+xml' => ['wspolicy'],
+        'application/x-7z-compressed' => ['7z', '7zip'],
+        'application/x-abiword' => ['abw'],
+        'application/x-ace-compressed' => ['ace'],
+        'application/x-apple-diskimage' => ['dmg'],
+        'application/x-arj' => ['arj'],
+        'application/x-authorware-bin' => ['aab', 'x32', 'u32', 'vox'],
+        'application/x-authorware-map' => ['aam'],
+        'application/x-authorware-seg' => ['aas'],
+        'application/x-bcpio' => ['bcpio'],
+        'application/x-bdoc' => ['bdoc'],
+        'application/x-bittorrent' => ['torrent'],
+        'application/x-blorb' => ['blb', 'blorb'],
+        'application/x-bzip' => ['bz'],
+        'application/x-bzip2' => ['bz2', 'boz'],
+        'application/x-cbr' => ['cbr', 'cba', 'cbt', 'cbz', 'cb7'],
+        'application/x-cdlink' => ['vcd'],
+        'application/x-cfs-compressed' => ['cfs'],
+        'application/x-chat' => ['chat'],
+        'application/x-chess-pgn' => ['pgn'],
+        'application/x-chrome-extension' => ['crx'],
+        'application/x-cocoa' => ['cco'],
+        'application/x-conference' => ['nsc'],
+        'application/x-cpio' => ['cpio'],
+        'application/x-csh' => ['csh'],
+        'application/x-debian-package' => ['deb', 'udeb'],
+        'application/x-dgc-compressed' => ['dgc'],
+        'application/x-director' => ['dir', 'dcr', 'dxr', 'cst', 'cct', 'cxt', 'w3d', 'fgd', 'swa'],
+        'application/x-doom' => ['wad'],
+        'application/x-dtbncx+xml' => ['ncx'],
+        'application/x-dtbook+xml' => ['dtb'],
+        'application/x-dtbresource+xml' => ['res'],
+        'application/x-dvi' => ['dvi'],
+        'application/x-envoy' => ['evy'],
+        'application/x-eva' => ['eva'],
+        'application/x-font-bdf' => ['bdf'],
+        'application/x-font-ghostscript' => ['gsf'],
+        'application/x-font-linux-psf' => ['psf'],
+        'application/x-font-pcf' => ['pcf'],
+        'application/x-font-snf' => ['snf'],
+        'application/x-font-type1' => ['pfa', 'pfb', 'pfm', 'afm'],
+        'application/x-freearc' => ['arc'],
+        'application/x-futuresplash' => ['spl'],
+        'application/x-gca-compressed' => ['gca'],
+        'application/x-glulx' => ['ulx'],
+        'application/x-gnumeric' => ['gnumeric'],
+        'application/x-gramps-xml' => ['gramps'],
+        'application/x-gtar' => ['gtar'],
+        'application/x-hdf' => ['hdf'],
+        'application/x-httpd-php' => ['php', 'php4', 'php3', 'phtml'],
+        'application/x-install-instructions' => ['install'],
+        'application/x-iso9660-image' => ['iso'],
+        'application/x-iwork-keynote-sffkey' => ['key'],
+        'application/x-iwork-numbers-sffnumbers' => ['numbers'],
+        'application/x-iwork-pages-sffpages' => ['pages'],
+        'application/x-java-archive-diff' => ['jardiff'],
+        'application/x-java-jnlp-file' => ['jnlp'],
+        'application/x-keepass2' => ['kdbx'],
+        'application/x-latex' => ['latex'],
+        'application/x-lua-bytecode' => ['luac'],
+        'application/x-lzh-compressed' => ['lzh', 'lha'],
+        'application/x-makeself' => ['run'],
+        'application/x-mie' => ['mie'],
+        'application/x-mobipocket-ebook' => ['prc', 'mobi'],
+        'application/x-ms-application' => ['application'],
+        'application/x-ms-shortcut' => ['lnk'],
+        'application/x-ms-wmd' => ['wmd'],
+        'application/x-ms-wmz' => ['wmz'],
+        'application/x-ms-xbap' => ['xbap'],
+        'application/x-msaccess' => ['mdb'],
+        'application/x-msbinder' => ['obd'],
+        'application/x-mscardfile' => ['crd'],
+        'application/x-msclip' => ['clp'],
+        'application/x-msdos-program' => ['exe'],
+        'application/x-msdownload' => ['exe', 'dll', 'com', 'bat', 'msi'],
+        'application/x-msmediaview' => ['mvb', 'm13', 'm14'],
+        'application/x-msmetafile' => ['wmf', 'wmz', 'emf', 'emz'],
+        'application/x-msmoney' => ['mny'],
+        'application/x-mspublisher' => ['pub'],
+        'application/x-msschedule' => ['scd'],
+        'application/x-msterminal' => ['trm'],
+        'application/x-mswrite' => ['wri'],
+        'application/x-netcdf' => ['nc', 'cdf'],
+        'application/x-ns-proxy-autoconfig' => ['pac'],
+        'application/x-nzb' => ['nzb'],
+        'application/x-perl' => ['pl', 'pm'],
+        'application/x-pilot' => ['prc', 'pdb'],
+        'application/x-pkcs12' => ['p12', 'pfx'],
+        'application/x-pkcs7-certificates' => ['p7b', 'spc'],
+        'application/x-pkcs7-certreqresp' => ['p7r'],
+        'application/x-rar-compressed' => ['rar'],
+        'application/x-redhat-package-manager' => ['rpm'],
+        'application/x-research-info-systems' => ['ris'],
+        'application/x-sea' => ['sea'],
+        'application/x-sh' => ['sh'],
+        'application/x-shar' => ['shar'],
+        'application/x-shockwave-flash' => ['swf'],
+        'application/x-silverlight-app' => ['xap'],
+        'application/x-sql' => ['sql'],
+        'application/x-stuffit' => ['sit'],
+        'application/x-stuffitx' => ['sitx'],
+        'application/x-subrip' => ['srt'],
+        'application/x-sv4cpio' => ['sv4cpio'],
+        'application/x-sv4crc' => ['sv4crc'],
+        'application/x-t3vm-image' => ['t3'],
+        'application/x-tads' => ['gam'],
+        'application/x-tar' => ['tar', 'tgz'],
+        'application/x-tcl' => ['tcl', 'tk'],
+        'application/x-tex' => ['tex'],
+        'application/x-tex-tfm' => ['tfm'],
+        'application/x-texinfo' => ['texinfo', 'texi'],
+        'application/x-tgif' => ['obj'],
+        'application/x-ustar' => ['ustar'],
+        'application/x-virtualbox-hdd' => ['hdd'],
+        'application/x-virtualbox-ova' => ['ova'],
+        'application/x-virtualbox-ovf' => ['ovf'],
+        'application/x-virtualbox-vbox' => ['vbox'],
+        'application/x-virtualbox-vbox-extpack' => ['vbox-extpack'],
+        'application/x-virtualbox-vdi' => ['vdi'],
+        'application/x-virtualbox-vhd' => ['vhd'],
+        'application/x-virtualbox-vmdk' => ['vmdk'],
+        'application/x-wais-source' => ['src'],
+        'application/x-web-app-manifest+json' => ['webapp'],
+        'application/x-x509-ca-cert' => ['der', 'crt', 'pem'],
+        'application/x-xfig' => ['fig'],
+        'application/x-xliff+xml' => ['xlf'],
+        'application/x-xpinstall' => ['xpi'],
+        'application/x-xz' => ['xz'],
+        'application/x-zmachine' => ['z1', 'z2', 'z3', 'z4', 'z5', 'z6', 'z7', 'z8'],
+        'application/xaml+xml' => ['xaml'],
+        'application/xcap-att+xml' => ['xav'],
+        'application/xcap-caps+xml' => ['xca'],
+        'application/xcap-diff+xml' => ['xdf'],
+        'application/xcap-el+xml' => ['xel'],
+        'application/xcap-ns+xml' => ['xns'],
+        'application/xenc+xml' => ['xenc'],
+        'application/xfdf' => ['xfdf'],
+        'application/xhtml+xml' => ['xhtml', 'xht'],
+        'application/xliff+xml' => ['xlf'],
+        'application/xml' => ['xml', 'xsl', 'xsd', 'rng'],
+        'application/xml-dtd' => ['dtd'],
+        'application/xop+xml' => ['xop'],
+        'application/xproc+xml' => ['xpl'],
+        'application/xslt+xml' => ['xsl', 'xslt'],
+        'application/xspf+xml' => ['xspf'],
+        'application/xv+xml' => ['mxml', 'xhvml', 'xvml', 'xvm'],
+        'application/yang' => ['yang'],
+        'application/yin+xml' => ['yin'],
+        'application/zip' => ['zip'],
+        'audio/3gpp' => ['3gpp'],
+        'audio/aac' => ['adts', 'aac'],
+        'audio/adpcm' => ['adp'],
+        'audio/amr' => ['amr'],
+        'audio/basic' => ['au', 'snd'],
+        'audio/midi' => ['mid', 'midi', 'kar', 'rmi'],
+        'audio/mobile-xmf' => ['mxmf'],
+        'audio/mp3' => ['mp3'],
+        'audio/mp4' => ['m4a', 'mp4a'],
+        'audio/mpeg' => ['mpga', 'mp2', 'mp2a', 'mp3', 'm2a', 'm3a'],
+        'audio/ogg' => ['oga', 'ogg', 'spx', 'opus'],
+        'audio/s3m' => ['s3m'],
+        'audio/silk' => ['sil'],
+        'audio/vnd.dece.audio' => ['uva', 'uvva'],
+        'audio/vnd.digital-winds' => ['eol'],
+        'audio/vnd.dra' => ['dra'],
+        'audio/vnd.dts' => ['dts'],
+        'audio/vnd.dts.hd' => ['dtshd'],
+        'audio/vnd.lucent.voice' => ['lvp'],
+        'audio/vnd.ms-playready.media.pya' => ['pya'],
+        'audio/vnd.nuera.ecelp4800' => ['ecelp4800'],
+        'audio/vnd.nuera.ecelp7470' => ['ecelp7470'],
+        'audio/vnd.nuera.ecelp9600' => ['ecelp9600'],
+        'audio/vnd.rip' => ['rip'],
+        'audio/wav' => ['wav'],
+        'audio/wave' => ['wav'],
+        'audio/webm' => ['weba'],
+        'audio/x-aac' => ['aac'],
+        'audio/x-aiff' => ['aif', 'aiff', 'aifc'],
+        'audio/x-caf' => ['caf'],
+        'audio/x-flac' => ['flac'],
+        'audio/x-m4a' => ['m4a'],
+        'audio/x-matroska' => ['mka'],
+        'audio/x-mpegurl' => ['m3u'],
+        'audio/x-ms-wax' => ['wax'],
+        'audio/x-ms-wma' => ['wma'],
+        'audio/x-pn-realaudio' => ['ram', 'ra', 'rm'],
+        'audio/x-pn-realaudio-plugin' => ['rmp', 'rpm'],
+        'audio/x-realaudio' => ['ra'],
+        'audio/x-wav' => ['wav'],
+        'audio/xm' => ['xm'],
+        'chemical/x-cdx' => ['cdx'],
+        'chemical/x-cif' => ['cif'],
+        'chemical/x-cmdf' => ['cmdf'],
+        'chemical/x-cml' => ['cml'],
+        'chemical/x-csml' => ['csml'],
+        'chemical/x-xyz' => ['xyz'],
+        'font/collection' => ['ttc'],
+        'font/otf' => ['otf'],
+        'font/ttf' => ['ttf'],
+        'font/woff' => ['woff'],
+        'font/woff2' => ['woff2'],
+        'image/aces' => ['exr'],
+        'image/apng' => ['apng'],
+        'image/avci' => ['avci'],
+        'image/avcs' => ['avcs'],
+        'image/avif' => ['avif'],
+        'image/bmp' => ['bmp', 'dib'],
+        'image/cgm' => ['cgm'],
+        'image/dicom-rle' => ['drle'],
+        'image/dpx' => ['dpx'],
+        'image/emf' => ['emf'],
+        'image/fits' => ['fits'],
+        'image/g3fax' => ['g3'],
+        'image/gif' => ['gif'],
+        'image/heic' => ['heic'],
+        'image/heic-sequence' => ['heics'],
+        'image/heif' => ['heif'],
+        'image/heif-sequence' => ['heifs'],
+        'image/hej2k' => ['hej2'],
+        'image/hsj2' => ['hsj2'],
+        'image/ief' => ['ief'],
+        'image/jls' => ['jls'],
+        'image/jp2' => ['jp2', 'jpg2'],
+        'image/jpeg' => ['jpeg', 'jpg', 'jpe'],
+        'image/jph' => ['jph'],
+        'image/jphc' => ['jhc'],
+        'image/jpm' => ['jpm', 'jpgm'],
+        'image/jpx' => ['jpx', 'jpf'],
+        'image/jxr' => ['jxr'],
+        'image/jxra' => ['jxra'],
+        'image/jxrs' => ['jxrs'],
+        'image/jxs' => ['jxs'],
+        'image/jxsc' => ['jxsc'],
+        'image/jxsi' => ['jxsi'],
+        'image/jxss' => ['jxss'],
+        'image/ktx' => ['ktx'],
+        'image/ktx2' => ['ktx2'],
+        'image/png' => ['png'],
+        'image/prs.btif' => ['btif', 'btf'],
+        'image/prs.pti' => ['pti'],
+        'image/sgi' => ['sgi'],
+        'image/svg+xml' => ['svg', 'svgz'],
+        'image/t38' => ['t38'],
+        'image/tiff' => ['tif', 'tiff'],
+        'image/tiff-fx' => ['tfx'],
+        'image/vnd.adobe.photoshop' => ['psd'],
+        'image/vnd.airzip.accelerator.azv' => ['azv'],
+        'image/vnd.dece.graphic' => ['uvi', 'uvvi', 'uvg', 'uvvg'],
+        'image/vnd.djvu' => ['djvu', 'djv'],
+        'image/vnd.dvb.subtitle' => ['sub'],
+        'image/vnd.dwg' => ['dwg'],
+        'image/vnd.dxf' => ['dxf'],
+        'image/vnd.fastbidsheet' => ['fbs'],
+        'image/vnd.fpx' => ['fpx'],
+        'image/vnd.fst' => ['fst'],
+        'image/vnd.fujixerox.edmics-mmr' => ['mmr'],
+        'image/vnd.fujixerox.edmics-rlc' => ['rlc'],
+        'image/vnd.microsoft.icon' => ['ico'],
+        'image/vnd.ms-dds' => ['dds'],
+        'image/vnd.ms-modi' => ['mdi'],
+        'image/vnd.ms-photo' => ['wdp'],
+        'image/vnd.net-fpx' => ['npx'],
+        'image/vnd.pco.b16' => ['b16'],
+        'image/vnd.tencent.tap' => ['tap'],
+        'image/vnd.valve.source.texture' => ['vtf'],
+        'image/vnd.wap.wbmp' => ['wbmp'],
+        'image/vnd.xiff' => ['xif'],
+        'image/vnd.zbrush.pcx' => ['pcx'],
+        'image/webp' => ['webp'],
+        'image/wmf' => ['wmf'],
+        'image/x-3ds' => ['3ds'],
+        'image/x-cmu-raster' => ['ras'],
+        'image/x-cmx' => ['cmx'],
+        'image/x-freehand' => ['fh', 'fhc', 'fh4', 'fh5', 'fh7'],
+        'image/x-icon' => ['ico'],
+        'image/x-jng' => ['jng'],
+        'image/x-mrsid-image' => ['sid'],
+        'image/x-ms-bmp' => ['bmp'],
+        'image/x-pcx' => ['pcx'],
+        'image/x-pict' => ['pic', 'pct'],
+        'image/x-portable-anymap' => ['pnm'],
+        'image/x-portable-bitmap' => ['pbm'],
+        'image/x-portable-graymap' => ['pgm'],
+        'image/x-portable-pixmap' => ['ppm'],
+        'image/x-rgb' => ['rgb'],
+        'image/x-tga' => ['tga'],
+        'image/x-xbitmap' => ['xbm'],
+        'image/x-xpixmap' => ['xpm'],
+        'image/x-xwindowdump' => ['xwd'],
+        'message/disposition-notification' => ['disposition-notification'],
+        'message/global' => ['u8msg'],
+        'message/global-delivery-status' => ['u8dsn'],
+        'message/global-disposition-notification' => ['u8mdn'],
+        'message/global-headers' => ['u8hdr'],
+        'message/rfc822' => ['eml', 'mime'],
+        'message/vnd.wfa.wsc' => ['wsc'],
+        'model/3mf' => ['3mf'],
+        'model/gltf+json' => ['gltf'],
+        'model/gltf-binary' => ['glb'],
+        'model/iges' => ['igs', 'iges'],
+        'model/jt' => ['jt'],
+        'model/mesh' => ['msh', 'mesh', 'silo'],
+        'model/mtl' => ['mtl'],
+        'model/obj' => ['obj'],
+        'model/prc' => ['prc'],
+        'model/step+xml' => ['stpx'],
+        'model/step+zip' => ['stpz'],
+        'model/step-xml+zip' => ['stpxz'],
+        'model/stl' => ['stl'],
+        'model/u3d' => ['u3d'],
+        'model/vnd.cld' => ['cld'],
+        'model/vnd.collada+xml' => ['dae'],
+        'model/vnd.dwf' => ['dwf'],
+        'model/vnd.gdl' => ['gdl'],
+        'model/vnd.gtw' => ['gtw'],
+        'model/vnd.mts' => ['mts'],
+        'model/vnd.opengex' => ['ogex'],
+        'model/vnd.parasolid.transmit.binary' => ['x_b'],
+        'model/vnd.parasolid.transmit.text' => ['x_t'],
+        'model/vnd.pytha.pyox' => ['pyo', 'pyox'],
+        'model/vnd.sap.vds' => ['vds'],
+        'model/vnd.usda' => ['usda'],
+        'model/vnd.usdz+zip' => ['usdz'],
+        'model/vnd.valve.source.compiled-map' => ['bsp'],
+        'model/vnd.vtu' => ['vtu'],
+        'model/vrml' => ['wrl', 'vrml'],
+        'model/x3d+binary' => ['x3db', 'x3dbz'],
+        'model/x3d+fastinfoset' => ['x3db'],
+        'model/x3d+vrml' => ['x3dv', 'x3dvz'],
+        'model/x3d+xml' => ['x3d', 'x3dz'],
+        'model/x3d-vrml' => ['x3dv'],
+        'text/cache-manifest' => ['appcache', 'manifest'],
+        'text/calendar' => ['ics', 'ifb'],
+        'text/coffeescript' => ['coffee', 'litcoffee'],
+        'text/css' => ['css'],
+        'text/csv' => ['csv'],
+        'text/html' => ['html', 'htm', 'shtml'],
+        'text/jade' => ['jade'],
+        'text/javascript' => ['js', 'mjs'],
+        'text/jsx' => ['jsx'],
+        'text/less' => ['less'],
+        'text/markdown' => ['md', 'markdown'],
+        'text/mathml' => ['mml'],
+        'text/mdx' => ['mdx'],
+        'text/n3' => ['n3'],
+        'text/plain' => ['txt', 'text', 'conf', 'def', 'list', 'log', 'in', 'ini', 'm3u'],
+        'text/prs.lines.tag' => ['dsc'],
+        'text/richtext' => ['rtx'],
+        'text/rtf' => ['rtf'],
+        'text/sgml' => ['sgml', 'sgm'],
+        'text/shex' => ['shex'],
+        'text/slim' => ['slim', 'slm'],
+        'text/spdx' => ['spdx'],
+        'text/stylus' => ['stylus', 'styl'],
+        'text/tab-separated-values' => ['tsv'],
+        'text/troff' => ['t', 'tr', 'roff', 'man', 'me', 'ms'],
+        'text/turtle' => ['ttl'],
+        'text/uri-list' => ['uri', 'uris', 'urls'],
+        'text/vcard' => ['vcard'],
+        'text/vnd.curl' => ['curl'],
+        'text/vnd.curl.dcurl' => ['dcurl'],
+        'text/vnd.curl.mcurl' => ['mcurl'],
+        'text/vnd.curl.scurl' => ['scurl'],
+        'text/vnd.dvb.subtitle' => ['sub'],
+        'text/vnd.familysearch.gedcom' => ['ged'],
+        'text/vnd.fly' => ['fly'],
+        'text/vnd.fmi.flexstor' => ['flx'],
+        'text/vnd.graphviz' => ['gv'],
+        'text/vnd.in3d.3dml' => ['3dml'],
+        'text/vnd.in3d.spot' => ['spot'],
+        'text/vnd.sun.j2me.app-descriptor' => ['jad'],
+        'text/vnd.wap.wml' => ['wml'],
+        'text/vnd.wap.wmlscript' => ['wmls'],
+        'text/vtt' => ['vtt'],
+        'text/wgsl' => ['wgsl'],
+        'text/x-asm' => ['s', 'asm'],
+        'text/x-c' => ['c', 'cc', 'cxx', 'cpp', 'h', 'hh', 'dic'],
+        'text/x-component' => ['htc'],
+        'text/x-fortran' => ['f', 'for', 'f77', 'f90'],
+        'text/x-handlebars-template' => ['hbs'],
+        'text/x-java-source' => ['java'],
+        'text/x-lua' => ['lua'],
+        'text/x-markdown' => ['mkd'],
+        'text/x-nfo' => ['nfo'],
+        'text/x-opml' => ['opml'],
+        'text/x-org' => ['org'],
+        'text/x-pascal' => ['p', 'pas'],
+        'text/x-processing' => ['pde'],
+        'text/x-sass' => ['sass'],
+        'text/x-scss' => ['scss'],
+        'text/x-setext' => ['etx'],
+        'text/x-sfv' => ['sfv'],
+        'text/x-suse-ymp' => ['ymp'],
+        'text/x-uuencode' => ['uu'],
+        'text/x-vcalendar' => ['vcs'],
+        'text/x-vcard' => ['vcf'],
+        'text/xml' => ['xml'],
+        'text/yaml' => ['yaml', 'yml'],
+        'video/3gpp' => ['3gp', '3gpp'],
+        'video/3gpp2' => ['3g2'],
+        'video/h261' => ['h261'],
+        'video/h263' => ['h263'],
+        'video/h264' => ['h264'],
+        'video/iso.segment' => ['m4s'],
+        'video/jpeg' => ['jpgv'],
+        'video/jpm' => ['jpm', 'jpgm'],
+        'video/mj2' => ['mj2', 'mjp2'],
+        'video/mp2t' => ['ts'],
+        'video/mp4' => ['mp4', 'mp4v', 'mpg4', 'f4v'],
+        'video/mpeg' => ['mpeg', 'mpg', 'mpe', 'm1v', 'm2v'],
+        'video/ogg' => ['ogv'],
+        'video/quicktime' => ['qt', 'mov'],
+        'video/vnd.dece.hd' => ['uvh', 'uvvh'],
+        'video/vnd.dece.mobile' => ['uvm', 'uvvm'],
+        'video/vnd.dece.pd' => ['uvp', 'uvvp'],
+        'video/vnd.dece.sd' => ['uvs', 'uvvs'],
+        'video/vnd.dece.video' => ['uvv', 'uvvv'],
+        'video/vnd.dvb.file' => ['dvb'],
+        'video/vnd.fvt' => ['fvt'],
+        'video/vnd.mpegurl' => ['mxu', 'm4u'],
+        'video/vnd.ms-playready.media.pyv' => ['pyv'],
+        'video/vnd.uvvu.mp4' => ['uvu', 'uvvu'],
+        'video/vnd.vivo' => ['viv'],
+        'video/webm' => ['webm'],
+        'video/x-f4v' => ['f4v'],
+        'video/x-fli' => ['fli'],
+        'video/x-flv' => ['flv'],
+        'video/x-m4v' => ['m4v'],
+        'video/x-matroska' => ['mkv', 'mk3d', 'mks'],
+        'video/x-mng' => ['mng'],
+        'video/x-ms-asf' => ['asf', 'asx'],
+        'video/x-ms-vob' => ['vob'],
+        'video/x-ms-wm' => ['wm'],
+        'video/x-ms-wmv' => ['wmv'],
+        'video/x-ms-wmx' => ['wmx'],
+        'video/x-ms-wvx' => ['wvx'],
+        'video/x-msvideo' => ['avi'],
+        'video/x-sgi-movie' => ['movie'],
+        'video/x-smv' => ['smv'],
+        'x-conference/x-cooltalk' => ['ice'],
+        'application/x-photoshop' => ['psd'],
+        'application/smil' => ['smi', 'smil'],
+        'application/powerpoint' => ['ppt'],
+        'application/vnd.ms-powerpoint.addin.macroEnabled.12' => ['ppam'],
+        'application/vnd.ms-powerpoint.presentation.macroEnabled.12' => ['pptm', 'potm'],
+        'application/vnd.ms-powerpoint.slideshow.macroEnabled.12' => ['ppsm'],
+        'application/wbxml' => ['wbxml'],
+        'application/wmlc' => ['wmlc'],
+        'application/x-httpd-php-source' => ['phps'],
+        'application/x-compress' => ['z'],
+        'application/x-rar' => ['rar'],
+        'video/vnd.rn-realvideo' => ['rv'],
+        'application/vnd.ms-word.template.macroEnabled.12' => ['docm', 'dotm'],
+        'application/vnd.ms-excel.sheet.macroEnabled.12' => ['xlsm'],
+        'application/vnd.ms-excel.template.macroEnabled.12' => ['xltm'],
+        'application/vnd.ms-excel.addin.macroEnabled.12' => ['xlam'],
+        'application/vnd.ms-excel.sheet.binary.macroEnabled.12' => ['xlsb'],
+        'application/excel' => ['xl'],
+        'application/x-x509-user-cert' => ['pem'],
+        'application/x-pkcs10' => ['p10'],
+        'application/x-pkcs7-signature' => ['p7a'],
+        'application/pgp' => ['pgp'],
+        'application/gpg-keys' => ['gpg'],
+        'application/x-pkcs7' => ['rsa'],
+        'video/3gp' => ['3gp'],
+        'audio/acc' => ['aac'],
+        'application/vnd.mpegurl' => ['m4u'],
+        'application/videolan' => ['vlc'],
+        'audio/x-au' => ['au'],
+        'audio/ac3' => ['ac3'],
+        'text/x-scriptzsh' => ['zsh'],
+        'application/cdr' => ['cdr'],
+        'application/STEP' => ['step', 'stp'],
+    ];
+
     public function lookupMimeType(string $extension): ?string
     {
         return self::MIME_TYPES_FOR_EXTENSIONS[$extension] ?? null;
     }
+
+    public function lookupExtension(string $mimetype): ?string
+    {
+        return self::EXTENSIONS_FOR_MIME_TIMES[$mimetype][0] ?? null;
+    }
+
+    /**
+     * @return string[]
+     */
+    public function lookupAllExtensions(string $mimetype): array
+    {
+        return self::EXTENSIONS_FOR_MIME_TIMES[$mimetype] ?? [];
+    }
 }
diff --git a/src/GeneratedExtensionToMimeTypeMapTest.php b/src/GeneratedExtensionToMimeTypeMapTest.php
index 0968a33..c703e29 100644
--- a/src/GeneratedExtensionToMimeTypeMapTest.php
+++ b/src/GeneratedExtensionToMimeTypeMapTest.php
@@ -15,6 +15,7 @@ class GeneratedExtensionToMimeTypeMapTest extends TestCase
 {
     /**
      * @test
+     *
      * @dataProvider expectedLookupResults
      */
     public function looking_up_mimetypes(string $extension, ?string $expectedMimeType): void
@@ -24,7 +25,7 @@ public function looking_up_mimetypes(string $extension, ?string $expectedMimeTyp
         $this->assertEquals($expectedMimeType, $actual);
     }
 
-    public function expectedLookupResults(): Generator
+    public static function expectedLookupResults(): Generator
     {
         yield ['jpg', 'image/jpeg'];
         yield ['svg', 'image/svg+xml'];
@@ -49,4 +50,32 @@ public function the_generated_map_should_be_up_to_date(): void
 
         $this->assertEquals($source, $storedSource);
     }
+
+    /**
+     * @test
+     *
+     * @dataProvider expectedExtensionResults
+     *
+     * @param string $mimeType
+     * @param string[] $expectedExtensions
+     */
+    public function looking_up_extensions(string $mimeType, array $expectedExtensions): void
+    {
+        // arrange
+        $map = new GeneratedExtensionToMimeTypeMap();
+
+        // act
+        $actual = $map->lookupAllExtensions($mimeType);
+
+        // assert
+        $this->assertEquals($expectedExtensions, $actual);
+    }
+
+    public static function expectedExtensionResults(): Generator
+    {
+        yield ['application/vnd.openxmlformats-officedocument.wordprocessingml.document', ['docx']];
+        yield ['image/jpeg', ['jpeg', 'jpg', 'jpe']];
+        yield ['image/svg+xml', ['svg', 'svgz']];
+        yield ['lol/lol', []];
+    }
 }
diff --git a/src/Generation/ExtensionToMimeTypeMap.php.template b/src/Generation/ExtensionToMimeTypeMap.php.template
index 9d4e600..e18f305 100644
--- a/src/Generation/ExtensionToMimeTypeMap.php.template
+++ b/src/Generation/ExtensionToMimeTypeMap.php.template
@@ -4,17 +4,37 @@ declare(strict_types=1);
 
 namespace League\MimeTypeDetection;
 
-class ExtensionToMimeTypeMapClass implements ExtensionToMimeTypeMap
+class ExtensionToMimeTypeMapClass implements ExtensionToMimeTypeMap, ExtensionLookup
 {
     /**
-     * @var string[]
+     * @var array<string, string>
      *
      * @internal
      */
-    public const MIME_TYPES_FOR_EXTENSIONS = [];
+    public const MIME_TYPES_FOR_EXTENSIONS = ['ext2mime'];
+
+    /**
+     * @var array<string, string>
+     *
+     * @internal
+     */
+    public const EXTENSIONS_FOR_MIME_TIMES = ['mime2ext'];
 
     public function lookupMimeType(string $extension): ?string
     {
         return self::MIME_TYPES_FOR_EXTENSIONS[$extension] ?? null;
     }
+
+    public function lookupExtension(string $mimetype): ?string
+    {
+        return self::EXTENSIONS_FOR_MIME_TIMES[$mimetype][0] ?? null;
+    }
+
+    /**
+     * @return string[]
+     */
+    public function lookupAllExtensions(string $mimetype): array
+    {
+        return self::EXTENSIONS_FOR_MIME_TIMES[$mimetype] ?? [];
+    }
 }
diff --git a/src/Generation/ExtensionToMimeTypeMapGenerator.php b/src/Generation/ExtensionToMimeTypeMapGenerator.php
index 691bc7c..952b2f7 100644
--- a/src/Generation/ExtensionToMimeTypeMapGenerator.php
+++ b/src/Generation/ExtensionToMimeTypeMapGenerator.php
@@ -5,6 +5,8 @@
 namespace League\MimeTypeDetection\Generation;
 
 use const PHP_EOL;
+use function array_unique;
+use function join;
 
 class ExtensionToMimeTypeMapGenerator
 {
@@ -22,16 +24,24 @@ public function dump(string $className): string
     {
         /** @var string[] $mimeTypes */
         $mimeTypes = [];
+        $reverseLookup = [];
+        $compiledReverseLookup = [];
 
         foreach ($this->provider->provideMimeTypes() as $mimeTypeForExtension) {
             $mimeTypes[$mimeTypeForExtension->extension()] = PHP_EOL . "        '{$mimeTypeForExtension->extension()}' => '{$mimeTypeForExtension->mimeType()}',";
+            $extensions = $reverseLookup[$mimeTypeForExtension->mimeType()] ?? [];
+            $extensions[] = $mimeTypeForExtension->extension();
+            $reverseLookup[$mimeTypeForExtension->mimeType()] = $extensions;
+            $extensionsAsCode = '[\'' . join('\', \'', array_unique($extensions)) . '\']';
+            $compiledReverseLookup[$mimeTypeForExtension->mimeType()] = PHP_EOL . "        '{$mimeTypeForExtension->mimeType()}' => $extensionsAsCode,";
         }
 
         ksort($mimeTypes, SORT_NATURAL);
 
         $template = file_get_contents(__DIR__ . '/ExtensionToMimeTypeMap.php.template');
         $template = str_replace('ExtensionToMimeTypeMapClass', $className, $template);
-        $template = str_replace(' = []', ' = [' . join('', $mimeTypes) . PHP_EOL . '    ]', $template);
+        $template = str_replace(' = [\'ext2mime\']', ' = [' . join('', $mimeTypes) . PHP_EOL . '    ]', $template);
+        $template = str_replace(' = [\'mime2ext\']', ' = [' . join('', $compiledReverseLookup) . PHP_EOL . '    ]', $template);
 
         return $template;
     }
diff --git a/src/Generation/FlysystemProvidedMimeTypeProvider.php b/src/Generation/FlysystemProvidedMimeTypeProvider.php
index a257fac..6d6435b 100644
--- a/src/Generation/FlysystemProvidedMimeTypeProvider.php
+++ b/src/Generation/FlysystemProvidedMimeTypeProvider.php
@@ -152,7 +152,8 @@ public function provideMimeTypes(): array
             new MimeTypeForExtension('audio/x-m4a', 'm4a'),
             new MimeTypeForExtension('video/mp4', 'f4v'),
             new MimeTypeForExtension('video/webm', 'webm'),
-            new MimeTypeForExtension('audio/x-acc', 'aac'),
+            new MimeTypeForExtension('audio/x-aac', 'aac'),
+            new MimeTypeForExtension('audio/acc', 'aac'),
             new MimeTypeForExtension('application/vnd.mpegurl', 'm4u'),
             new MimeTypeForExtension('text/plain', 'm3u'),
             new MimeTypeForExtension('application/xspf+xml', 'xspf'),