diff --git a/src/utils/common/utilFunctions.ts b/src/utils/common/utilFunctions.ts
index f83f1292f..72ef3ae2e 100644
--- a/src/utils/common/utilFunctions.ts
+++ b/src/utils/common/utilFunctions.ts
@@ -1,4 +1,4 @@
-import {errorCodes} from './errorUtil';
+import { errorCodes } from './errorUtil';
 
 export function checkConnectivity() {
     if (navigator.onLine) {
@@ -7,3 +7,7 @@ export function checkConnectivity() {
         throw new Error(errorCodes.ERR_NO_INTERNET_CONNECTION);
     }
 }
+
+export function getFileExtension(fileName): string {
+    return fileName.substr(fileName.lastIndexOf('.') + 1).toLowerCase();
+}