diff --git a/client/src/components/Collections/ListCollectionCreator.vue b/client/src/components/Collections/ListCollectionCreator.vue
index 83c215934ebe..825c2c4a13b3 100644
--- a/client/src/components/Collections/ListCollectionCreator.vue
+++ b/client/src/components/Collections/ListCollectionCreator.vue
@@ -175,7 +175,7 @@ function _isElementInvalid(element: HistoryItemSummary): string | null {
         element.extension &&
         !datatypesMapper.value?.isSubTypeOfAny(element.extension, props.extensions!)
     ) {
-        return localize(`has an invalid extension: ${element.extension}`);
+        return localize(`has an invalid format: ${element.extension}`);
     }
     return null;
 }
@@ -572,7 +572,7 @@ function renameElement(element: any, name: string) {
                                 )
                             }}
                             <div v-if="extensions?.length">
-                                {{ localize("The following extensions are required for this list: ") }}
+                                {{ localize("The following format(s) are required for this list: ") }}
                                 <ul>
                                     <li v-for="extension in extensions" :key="extension">
                                         {{ extension }}
diff --git a/client/src/components/Collections/PairCollectionCreator.vue b/client/src/components/Collections/PairCollectionCreator.vue
index 1f74b2ebe006..95997a5c00c0 100644
--- a/client/src/components/Collections/PairCollectionCreator.vue
+++ b/client/src/components/Collections/PairCollectionCreator.vue
@@ -215,7 +215,7 @@ function _isElementInvalid(element: HistoryItemSummary) {
         element.extension &&
         !datatypesMapper.value?.isSubTypeOfAny(element.extension, props.extensions!)
     ) {
-        return localize(`has an invalid extension: ${element.extension}`);
+        return localize(`has an invalid format: ${element.extension}`);
     }
     return null;
 }
@@ -468,7 +468,7 @@ function _naiveStartingAndEndingLCS(s1: string, s2: string) {
                                 )
                             }}
                             <div v-if="extensions?.length">
-                                {{ localize("The following extensions are required for this pair: ") }}
+                                {{ localize("The following formats are required for this pair: ") }}
                                 <ul>
                                     <li v-for="extension in extensions" :key="extension">
                                         {{ extension }}
diff --git a/client/src/components/Collections/PairedListCollectionCreator.vue b/client/src/components/Collections/PairedListCollectionCreator.vue
index 1f831e66a79c..4542ad324457 100644
--- a/client/src/components/Collections/PairedListCollectionCreator.vue
+++ b/client/src/components/Collections/PairedListCollectionCreator.vue
@@ -304,7 +304,7 @@ function _isElementInvalid(element: HistoryItemSummary) {
         element.extension &&
         !datatypesMapper.value?.isSubTypeOfAny(element.extension, props.extensions!)
     ) {
-        return localize(`has an invalid extension: ${element.extension}`);
+        return localize(`has an invalid format: ${element.extension}`);
     }
     return null;
 }
@@ -1036,7 +1036,7 @@ function _naiveStartingAndEndingLCS(s1: string, s2: string) {
                                 )
                             }}
                             <span v-if="extensions?.length">
-                                {{ localize("The following extensions are required for this collection: ") }}
+                                {{ localize("The following format(s) are required for this collection: ") }}
                                 <ul>
                                     <li v-for="extension in extensions" :key="extension">
                                         {{ extension }}
diff --git a/client/src/components/Collections/common/CollectionCreator.vue b/client/src/components/Collections/common/CollectionCreator.vue
index aae681963a75..3aef280dc7d2 100644
--- a/client/src/components/Collections/common/CollectionCreator.vue
+++ b/client/src/components/Collections/common/CollectionCreator.vue
@@ -254,7 +254,7 @@ watch(
                             <BAlert v-if="extensions?.length" class="w-100 py-0" variant="secondary" show>
                                 <HelpText
                                     uri="galaxy.collections.collectionBuilder.requiredUploadExtensions"
-                                    :text="localize('Required extensions: ')" />
+                                    :text="localize('Required format(s): ')" />
                                 <strong>{{ orList(extensions) }}</strong>
                             </BAlert>
                         </div>
diff --git a/client/src/components/Collections/common/CollectionCreatorShowExtensions.vue b/client/src/components/Collections/common/CollectionCreatorShowExtensions.vue
index 45a99b22eef8..a3e837d4ad6c 100644
--- a/client/src/components/Collections/common/CollectionCreatorShowExtensions.vue
+++ b/client/src/components/Collections/common/CollectionCreatorShowExtensions.vue
@@ -18,7 +18,7 @@ defineProps<Props>();
         <BAlert v-if="extensions?.length" class="w-100 py-0" variant="secondary" show>
             <HelpText
                 uri="galaxy.collections.collectionBuilder.filteredExtensions"
-                :text="localize('Filtered extensions: ')" />
+                :text="localize('Filtered format(s): ')" />
             <strong>{{ orList(extensions) }}</strong>
         </BAlert>
     </div>
diff --git a/client/src/components/Help/terms.yml b/client/src/components/Help/terms.yml
index fba181e8cbf2..b7fb15e87dd7 100644
--- a/client/src/components/Help/terms.yml
+++ b/client/src/components/Help/terms.yml
@@ -64,13 +64,13 @@ galaxy:
         Toggling this on means that the original history items that will become a part of the collection
         will be hidden from the history panel (they will still be searchable via the 'visible: false' filter).
       filteredExtensions: |
-        The history is filtered for the extensions that are required for this collection. You might see some
-        items with other extensions since those can still be valid inputs via implicit conversion.
+        The history is filtered for the formats that are required for this collection. You might see some
+        items with other formats since those can still be valid inputs via implicit conversion.
       requiredUploadExtensions: |
-        The extensions that are required for this collection. The files you upload will be assumed to have
-        these extensions. In the case of more than one extension, you can select a specific extension for
-        each individual file above. If there is only one extension, Galaxy will attempt to set that as the
-        extension for each file.
+        The formats that are required for this collection. The files you upload will be assumed to have
+        these formats. In the case of more than one format, you can select a specific format for
+        each individual file above. If there is only one format, Galaxy will attempt to set that as the
+        format for each file.
       whyHomogenousCollections: |
         Dataset collections are designed to streamline the analysis of large numbers of datasets by grouping
         them together into a single, manageable entity. Unlike generic folders on your computer, which can hold