Many versions ago we were able to change the file extension within Gallery. Sometimes a gif or video will download as a jpg etc and needs to be manually changed. I'm now having to use a file manager to do this when it used to be possible directly in Gallery. Can we get this ability added back?
You can still change the extension without having to download a third-party app. All you need to do is open the "my files" app. Tap on internal storage or SD card depending where your images are located. Tap on DCIM and locate which photo you want to change. Select it then tap on the three dots located on the upper right hand of the screen and then tap on rename. It will then allow you to manually change the extension by renaming it