diff --git a/frontend/package-lock.json b/frontend/package-lock.json
index 298c61f..e7f4c2b 100644
--- a/frontend/package-lock.json
+++ b/frontend/package-lock.json
@@ -192,12 +192,12 @@
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-      "integrity": "sha1-A1UaXH8O371PyPoSpoFJeOq2UcM=",
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/adler-32/-/adler-32-1.2.0.tgz",
+      "integrity": "sha1-aj5r8KY5ALoVZSgIyxXGgT0aXyU=",
       "requires": {
-        "exit-on-epipe": "1.0.1",
-        "printj": "1.1.0"
+        "exit-on-epipe": "~1.0.1",
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       "integrity": "sha1-OciRjO/1eZ+D+UkqhI9iWt0Mdm8=",
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@@ -1728,12 +1729,13 @@
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-      "resolved": "https://registry.npmjs.org/cfb/-/cfb-1.0.1.tgz",
-      "integrity": "sha1-VXuyT2fa54gDeFoVldNlvILF+rQ=",
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/cfb/-/cfb-1.2.0.tgz",
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       "requires": {
-        "commander": "2.12.2",
-        "printj": "1.1.0"
+        "adler-32": "~1.2.0",
+        "crc-32": "~1.2.0",
+        "printj": "~1.1.2"
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@@ -2043,19 +2045,18 @@
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-      "integrity": "sha1-hkcjl+pbLNuwe3cBalEkd6PLiCM=",
+      "version": "1.14.0",
+      "resolved": "https://registry.npmjs.org/codepage/-/codepage-1.14.0.tgz",
+      "integrity": "sha1-jL4lSBMjVZ19MHVxsP/5HnodL5k=",
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-        "commander": "2.11.0",
-        "exit-on-epipe": "1.0.1",
-        "voc": "1.0.0"
+        "commander": "~2.14.1",
+        "exit-on-epipe": "~1.0.1"
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-          "resolved": "https://registry.npmjs.org/commander/-/commander-2.11.0.tgz",
-          "integrity": "sha512-b0553uYA5YAEGgyYIGYROzKQ7X5RAqedkfjiZxwi0kL1g3bOaBNNZfYkzt/CL0umgD5wc9Jec2FbB98CjkMRvQ=="
+          "version": "2.14.1",
+          "resolved": "https://registry.npmjs.org/commander/-/commander-2.14.1.tgz",
+          "integrity": "sha512-+YR16o3rK53SmWHU3rEM3tPAh2rwb1yPcQX5irVn7mb0gXbwuCCrnkbV5+PBfETdfg1vui07nM6PCG1zndcjQw=="
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@@ -2126,6 +2127,7 @@
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       "integrity": "sha1-k4NwpXtKUd6ix3wV1cX9+JUWQAk=",
       "dev": true,
+      "optional": true,
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@@ -2133,7 +2135,8 @@
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-      "integrity": "sha512-BFnaq5ZOGcDN7FlrtBT4xxkgIToalIIxwjxLWVJ8bGTpe1LroqMiqQXdA7ygc7CRvaYS+9zfPGFnJqFSayx+AA=="
+      "integrity": "sha512-BFnaq5ZOGcDN7FlrtBT4xxkgIToalIIxwjxLWVJ8bGTpe1LroqMiqQXdA7ygc7CRvaYS+9zfPGFnJqFSayx+AA==",
+      "dev": true
     },
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@@ -2353,12 +2356,12 @@
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-      "resolved": "https://registry.npmjs.org/crc-32/-/crc-32-1.1.1.tgz",
-      "integrity": "sha1-XXOdXkxuNSrYME1zIj1IP+Va240=",
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/crc-32/-/crc-32-1.2.0.tgz",
+      "integrity": "sha512-1uBwHxF+Y/4yF5G48fwnKq6QsIXheor3ZLPT80yGBV1oEUwpPojlEhQbWKVw1VwcTQyMGHK1/XMmTjmlsmTTGA==",
       "requires": {
-        "exit-on-epipe": "1.0.1",
-        "printj": "1.1.0"
+        "exit-on-epipe": "~1.0.1",
+        "printj": "~1.1.0"
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@@ -2790,7 +2793,8 @@
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       "integrity": "sha1-3zrhmayt+31ECqrgsp4icrJOxhk=",
-      "dev": true
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@@ -3804,7 +3808,8 @@
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       "integrity": "sha1-lpGEQOMEGnpBT4xS48V06zw+HgU=",
-      "dev": true
+      "dev": true,
+      "optional": true
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@@ -3839,6 +3844,11 @@
         "websocket-driver": "0.7.0"
       }
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+    "fflate": {
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+      "resolved": "https://registry.npmjs.org/fflate/-/fflate-0.3.11.tgz",
+      "integrity": "sha512-Rr5QlUeGN1mbOHlaqcSYMKVpPbgLy0AWT/W0EHxA6NGI12yO1jpoui2zBBvU2G824ltM6Ut8BFgfHSBGfkmS0A=="
+    },
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@@ -4029,12 +4039,9 @@
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-      "resolved": "https://registry.npmjs.org/frac/-/frac-1.1.0.tgz",
-      "integrity": "sha1-3EN+nGpka2CxJ9gqxJAkZERcweM=",
-      "requires": {
-        "voc": "1.0.0"
-      }
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/frac/-/frac-1.1.2.tgz",
+      "integrity": "sha512-w/XBfkibaTl3YDqASwfDUqkna4Z2p9cFSr1aHDt0WoMTECnRfBOv2WArlZILlqgWlmdIlALXGpM2AOhEk5W3IA=="
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@@ -4109,7 +4116,8 @@
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-          "dev": true
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@@ -4160,7 +4168,8 @@
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-          "dev": true
+          "dev": true,
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@@ -4175,6 +4184,7 @@
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@@ -4183,6 +4193,7 @@
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@@ -4191,6 +4202,7 @@
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@@ -4199,7 +4211,8 @@
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@@ -4216,12 +4229,14 @@
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           "bundled": true,
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@@ -4229,22 +4244,26 @@
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+          "dev": true,
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           "version": "2.0.5",
           "bundled": true,
           "dev": true,
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@@ -4284,7 +4303,8 @@
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@@ -4316,7 +4336,8 @@
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-          "dev": true
+          "dev": true,
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@@ -4338,12 +4359,14 @@
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+          "optional": true
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           "bundled": true,
           "dev": true,
+          "optional": true,
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@@ -4399,6 +4422,7 @@
           "version": "7.1.2",
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           "dev": true,
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@@ -4411,7 +4435,8 @@
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@@ -4439,6 +4464,7 @@
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           "dev": true,
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@@ -4449,7 +4475,8 @@
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@@ -4466,6 +4493,7 @@
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@@ -4474,7 +4502,8 @@
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@@ -4486,6 +4515,7 @@
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@@ -4499,7 +4529,8 @@
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@@ -4572,12 +4603,14 @@
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@@ -4586,6 +4619,7 @@
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@@ -4593,12 +4627,14 @@
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+          "optional": true
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@@ -4653,7 +4689,8 @@
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@@ -4671,6 +4708,7 @@
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@@ -4700,7 +4738,8 @@
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@@ -4711,7 +4750,8 @@
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@@ -4749,6 +4789,7 @@
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@@ -4793,6 +4834,7 @@
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@@ -4800,7 +4842,8 @@
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@@ -4824,6 +4867,7 @@
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@@ -4857,6 +4901,7 @@
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@@ -4867,6 +4912,7 @@
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@@ -4881,6 +4927,7 @@
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@@ -4895,6 +4942,7 @@
           "version": "2.2.1",
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@@ -4950,7 +4998,8 @@
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@@ -4979,7 +5028,8 @@
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           "version": "1.0.2",
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@@ -8391,9 +8442,9 @@
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+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/printj/-/printj-1.1.2.tgz",
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-      "resolved": "https://registry.npmjs.org/ssf/-/ssf-0.10.1.tgz",
-      "integrity": "sha1-8j2CtjeS71YIkInBzQyEjpEc26Y=",
+      "version": "0.11.2",
+      "resolved": "https://registry.npmjs.org/ssf/-/ssf-0.11.2.tgz",
+      "integrity": "sha512-+idbmIXoYET47hH+d7dfm2epdOMUDjqcB4648sTZ+t2JwoyBFL/insLfB/racrDmsKB3diwsDA696pZMieAC5g==",
       "requires": {
-        "frac": "1.1.0"
+        "frac": "~1.1.2"
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@@ -10797,11 +10848,6 @@
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-      "integrity": "sha512-mQwxWlK+zosxxDTqiFb9ZQBNgd794scgkhVwca7h9sEhvA52f3VzbOK+TOWeS8eSrFXnfuKrxElSPc5oLAetfw=="
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@@ -11924,6 +11970,16 @@
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       "dev": true
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+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/wmf/-/wmf-1.0.2.tgz",
+      "integrity": "sha512-/p9K7bEh0Dj6WbXg4JG0xvLQmIadrner1bi45VMJTfnbVHsc7yIajZyoSoK60/dtVBs12Fm6WkUI5/3WAVsNMw=="
+    },
+    "word": {
+      "version": "0.3.0",
+      "resolved": "https://registry.npmjs.org/word/-/word-0.3.0.tgz",
+      "integrity": "sha512-OELeY0Q61OXpdUfTp+oweA/vtLVg5VDOXh+3he3PNzLGG/y0oylSOC1xRVj0+l4vQ3tj/bB1HVHv1ocXkQceFA=="
+    },
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@@ -11978,23 +12034,26 @@
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-      "integrity": "sha1-UHRh+5eDrQr+HPdRrrWZVukyMto=",
-      "requires": {
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-        "cfb": "1.0.1",
-        "codepage": "1.11.1",
-        "commander": "2.11.0",
-        "crc-32": "1.1.1",
-        "exit-on-epipe": "1.0.1",
-        "ssf": "0.10.1"
+      "version": "0.17.0",
+      "resolved": "https://registry.npmjs.org/xlsx/-/xlsx-0.17.0.tgz",
+      "integrity": "sha512-bZ36FSACiAyjoldey1+7it50PMlDp1pcAJrZKcVZHzKd8BC/z6TQ/QAN8onuqcepifqSznR6uKnjPhaGt6ig9A==",
+      "requires": {
+        "adler-32": "~1.2.0",
+        "cfb": "^1.1.4",
+        "codepage": "~1.14.0",
+        "commander": "~2.17.1",
+        "crc-32": "~1.2.0",
+        "exit-on-epipe": "~1.0.1",
+        "fflate": "^0.3.8",
+        "ssf": "~0.11.2",
+        "wmf": "~1.0.1",
+        "word": "~0.3.0"
       },
       "dependencies": {
         "commander": {
-          "version": "2.11.0",
-          "resolved": "https://registry.npmjs.org/commander/-/commander-2.11.0.tgz",
-          "integrity": "sha512-b0553uYA5YAEGgyYIGYROzKQ7X5RAqedkfjiZxwi0kL1g3bOaBNNZfYkzt/CL0umgD5wc9Jec2FbB98CjkMRvQ=="
+          "version": "2.17.1",
+          "resolved": "https://registry.npmjs.org/commander/-/commander-2.17.1.tgz",
+          "integrity": "sha512-wPMUt6FnH2yzG95SA6mzjQOEKUU3aLaDEmzs1ti+1E9h+CsrZghRlqEM/EJ4KscsQVG8uNN4uVreUeT8+drlgg=="
         }
       }
     },
diff --git a/frontend/package.json b/frontend/package.json
index 96e091d..c390db8 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -35,7 +35,7 @@
     "vue-router": "^3.0.1",
     "vue-virtual-scroller": "^0.10.6",
     "vuex": "^3.0.1",
-    "xlsx": "^0.11.17"
+    "xlsx": "^0.17.0"
   },
   "devDependencies": {
     "autoprefixer-loader": "^3.2.0",