file: ///sdcard/ To view and open files from storage on your device you should typically use a file manager, like many that exist in the Play Store. file ///sdcard, If your phone doesn’t have one or you don’t have access to it, you can also make use of the web browser. Simply enter the URL file:///sdcard/ in the address bar of Google Chrome, Firefox or Samsung Internet.
https://techkalture.com/file-sdcard/