diff --git a/src/lib/utils/extensions.ts b/src/lib/utils/extensions.ts
index c19333e7..5fa3d7b4 100644
--- a/src/lib/utils/extensions.ts
+++ b/src/lib/utils/extensions.ts
@@ -97,6 +97,7 @@ export const ExtensionsMap = {
     'iso',
     'msp',
     'buffer',
+    'tdms',
   ],
   'application/oda': ['oda'],
   'application/oebps-package+xml': ['opf'],