diff --git a/app/assets/stylesheets/components/show.scss b/app/assets/stylesheets/components/show.scss
index 913efdc6..8eb1cc96 100644
--- a/app/assets/stylesheets/components/show.scss
+++ b/app/assets/stylesheets/components/show.scss
@@ -57,3 +57,7 @@
     }
   }
 }
+
+#document-file-type-list-extra {
+  margin-top: -25px;
+}
diff --git a/app/views/catalog/_show_sidebar.html.erb b/app/views/catalog/_show_sidebar.html.erb
index c679751a..154c0c52 100644
--- a/app/views/catalog/_show_sidebar.html.erb
+++ b/app/views/catalog/_show_sidebar.html.erb
@@ -8,11 +8,48 @@
 <div id="sidebar-keywords" class="sidebar">
   <%= render_sidebar_licenses @document.license %>
   <%= render_sidebar_subject_search_links "Keywords", @document.subject, "subject_all_ssim" %>
+
   <% file_counts = @document.file_counts.map { |group| "#{group[:extension]}(#{group[:file_count]})" } %>
-  <%= render_sidebar_values "File Types: ", file_counts, ", " %>
+  <%if file_counts.count <= 10 %>
+    <%= render_sidebar_values "File Types: ", file_counts, ", " %>
+  <% else %>
+    <div id="document-file-type-list">
+      <%= render_sidebar_values "File Types: ", file_counts.first(10), ", " %>
+    </div>
+    <div id="document-file-type-list-extra" class="hidden-element">
+      <%= render_sidebar_values "", file_counts.drop(10), ", " %>
+    </div>
+    <a id="document-file-type-list-toggle" href="#">
+      <i class="bi bi-caret-down"></i><span>Show More</span>
+    </a>
+  <%end%>
+  <br>
   <%= render_sidebar_doi_row @document.doi_url, @document.doi_value %>
   <%= render_sidebar_related_identifiers "Related Identifiers", @document.related_identifiers %>
   <% if @document.pdc_describe_record? %>
     <%= render_sidebar_value("Total Size", number_to_human_size(@document.total_file_size))%>
   <% end %>
 </div>
+
+
+<script>
+ var setupMoreLessToggle = function(linkId, extraId) {
+  $(linkId).click(function() {
+    if ($(linkId).text().includes("Show Less")) {
+      $(extraId).addClass("hidden-element");
+      $(linkId + " i").toggleClass("bi-caret-up bi-caret-down");
+      $(linkId + " span").text("Show More");
+    } else {
+      $(extraId).removeClass("hidden-element");
+      $(linkId + " i").toggleClass("bi-caret-up bi-caret-down");
+      $(linkId + " span").text("Show Less");
+    }
+    return false;
+  });
+};
+
+setupMoreLessToggle("#document-file-type-list-toggle", "#document-file-type-list-extra");
+
+ </script>
+
+
diff --git a/spec/fixtures/files/pdc_describe_data/89.json b/spec/fixtures/files/pdc_describe_data/89.json
index 899a92f8..ea3dd5cb 100644
--- a/spec/fixtures/files/pdc_describe_data/89.json
+++ b/spec/fixtures/files/pdc_describe_data/89.json
@@ -232,61 +232,61 @@
             "url": "https://g-ef94ef.f0ad1.36fe.data.globus.org/10.34770/bm4s-t361/89/Fig16a.hdf"
         },
         {
-            "filename": "10.34770/bm4s-t361/89/Fig16b.hdf",
+            "filename": "10.34770/bm4s-t361/89/Fig16b.ccc",
             "size": 17264,
             "display_size": "16.9 KB",
             "url": "https://g-ef94ef.f0ad1.36fe.data.globus.org/10.34770/bm4s-t361/89/Fig16b.hdf"
         },
         {
-            "filename": "10.34770/bm4s-t361/89/Fig1a.png",
+            "filename": "10.34770/bm4s-t361/89/Fig1a.bbb",
             "size": 72628,
             "display_size": "70.9 KB",
             "url": "https://g-ef94ef.f0ad1.36fe.data.globus.org/10.34770/bm4s-t361/89/Fig1a.png"
         },
         {
-            "filename": "10.34770/bm4s-t361/89/Fig1b.png",
+            "filename": "10.34770/bm4s-t361/89/Fig1b.aaa",
             "size": 301258,
             "display_size": "294 KB",
             "url": "https://g-ef94ef.f0ad1.36fe.data.globus.org/10.34770/bm4s-t361/89/Fig1b.png"
         },
         {
-            "filename": "10.34770/bm4s-t361/89/Fig2.png",
+            "filename": "10.34770/bm4s-t361/89/Fig2.pdf",
             "size": 225329,
             "display_size": "220 KB",
             "url": "https://g-ef94ef.f0ad1.36fe.data.globus.org/10.34770/bm4s-t361/89/Fig2.png"
         },
         {
-            "filename": "10.34770/bm4s-t361/89/Fig3a.png",
+            "filename": "10.34770/bm4s-t361/89/Fig3a.py",
             "size": 669489,
             "display_size": "654 KB",
             "url": "https://g-ef94ef.f0ad1.36fe.data.globus.org/10.34770/bm4s-t361/89/Fig3a.png"
         },
         {
-            "filename": "10.34770/bm4s-t361/89/Fig3b.png",
+            "filename": "10.34770/bm4s-t361/89/Fig3b.rb",
             "size": 1524537,
             "display_size": "1.45 MB",
             "url": "https://g-ef94ef.f0ad1.36fe.data.globus.org/10.34770/bm4s-t361/89/Fig3b.png"
         },
         {
-            "filename": "10.34770/bm4s-t361/89/Fig4.hdf",
+            "filename": "10.34770/bm4s-t361/89/Fig4.xls",
             "size": 11307376,
             "display_size": "10.8 MB",
             "url": "https://g-ef94ef.f0ad1.36fe.data.globus.org/10.34770/bm4s-t361/89/Fig4.hdf"
         },
         {
-            "filename": "10.34770/bm4s-t361/89/Fig5_7_8a.hdf",
+            "filename": "10.34770/bm4s-t361/89/Fig5_7_8a.doc",
             "size": 40511960,
             "display_size": "38.6 MB",
             "url": "https://g-ef94ef.f0ad1.36fe.data.globus.org/10.34770/bm4s-t361/89/Fig5_7_8a.hdf"
         },
         {
-            "filename": "10.34770/bm4s-t361/89/Fig6.hdf",
+            "filename": "10.34770/bm4s-t361/89/Fig6.tiff",
             "size": 151856,
             "display_size": "148 KB",
             "url": "https://g-ef94ef.f0ad1.36fe.data.globus.org/10.34770/bm4s-t361/89/Fig6.hdf"
         },
         {
-            "filename": "10.34770/bm4s-t361/89/Fig8b.hdf",
+            "filename": "10.34770/bm4s-t361/89/Fig8b.jpg",
             "size": 32944056,
             "display_size": "31.4 MB",
             "url": "https://g-ef94ef.f0ad1.36fe.data.globus.org/10.34770/bm4s-t361/89/Fig8b.hdf"
@@ -320,4 +320,4 @@
     "embargo_date": null,
     "created_at": "2023-08-18T13:47:14Z",
     "updated_at": "2024-02-23T11:05:11Z"
-}
\ No newline at end of file
+}
diff --git a/spec/system/show_pdc_describe_record_spec.rb b/spec/system/show_pdc_describe_record_spec.rb
index 64fa83b7..066037c8 100644
--- a/spec/system/show_pdc_describe_record_spec.rb
+++ b/spec/system/show_pdc_describe_record_spec.rb
@@ -51,6 +51,29 @@
     third_filename_spot = find(:xpath, "//table[@id='files-table']/tbody/tr[3]/td[1]").text
     expect(third_filename_spot).to eq("Fig10a.hdf")
   end
+
+  it 'shows file types when there is more than 10 in sidebar' do
+    visit '/catalog/doi-10-34770-bm4s-t361'
+    # initially only first ten file types are shown
+    expect(page).to have_content("Show More")
+    expect(page).to have_selector('#document-file-type-list-toggle', visible: true)
+    inital_file_types = find(:xpath, "//*[@id='document-file-type-list']/div/span[2]").text
+    expect(inital_file_types).to eq("hdf(12), ccc(1), bbb(1), aaa(1), pdf(1), py(1), rb(1), xls(1), doc(1), tiff(1)")
+    expect(page).to have_selector('#document-file-type-list-extra', visible: false)
+    # clicks the Show More button to show the rest of the file types
+    find(:xpath, "//*[@id='document-file-type-list-toggle']/span").click
+    expect(page).to have_content("Show Less")
+    expect(inital_file_types).to eq("hdf(12), ccc(1), bbb(1), aaa(1), pdf(1), py(1), rb(1), xls(1), doc(1), tiff(1)")
+    rest_of_file_types = find(:xpath, "//*[@id='document-file-type-list-extra']/div/span[2]").text
+    expect(rest_of_file_types).to eq("jpg(1), txt(1)")
+    expect(page).to have_selector('#document-file-type-list-extra', visible: true)
+    # Clicks the Show Less button to hide the rest of the file types
+    find(:xpath, "//*[@id='document-file-type-list-toggle']/span").click
+    expect(page).to have_content("Show More")
+    expect(inital_file_types).to eq("hdf(12), ccc(1), bbb(1), aaa(1), pdf(1), py(1), rb(1), xls(1), doc(1), tiff(1)")
+    expect(page).to have_selector('#document-file-type-list-extra', visible: false)
+  end
+
   it 'correctly sorts by file size' do
     visit '/catalog/doi-10-34770-bm4s-t361'
     sleep(0.1) # wait for the files to load via AJAX