diff --git a/src/lib/utils/extensions.ts b/src/lib/utils/extensions.ts
index c19333e7..83c16b89 100644
--- a/src/lib/utils/extensions.ts
+++ b/src/lib/utils/extensions.ts
@@ -80,6 +80,7 @@ export const ExtensionsMap = {
   'application/octet-stream': [
     'bin',
     'dms',
+    'tdms',
     'lrf',
     'mar',
     'so',
diff --git a/src/lib/utils/index.ts b/src/lib/utils/index.ts
index fec33faa..fcdda1c7 100644
--- a/src/lib/utils/index.ts
+++ b/src/lib/utils/index.ts
@@ -102,8 +102,12 @@ export const uniqueId = (len: number = 10): string => {
  * @returns {string} - mimetype
  */
 export const getMimetype = async(file: Uint8Array | Buffer, name?: string): Promise<string> => {
-  let type = await fromBuffer(file);
-
+  let type;
+  try {
+     type = await fromBuffer(file);
+  } catch(e) {
+    return 'application/octet-stream'
+  }
   const excludedMimetypes = ['text/plain', 'application/octet-stream', 'application/x-ms', 'application/x-msi', 'application/zip'];
 
   if (type && excludedMimetypes.indexOf(type.mime) === -1) {