You can now change file extensions of any files, documents, or items contained within the Files app on iPhone or iPad.
In order to change file extensions on your iOS or iPadOS device you will first need to make sure you show file extensions in Files app on iPad or iPhone if you haven’t done that already.
How to Change File Extensions in Files App on iPhone & iPad
- Enable the visibility of file extensions in Files app so that you can see the file extension(s) you want to change by going to the view menu and choosing View Options > Show File Extensions
- Tap and…