How Do I Stop Koala Being the Default App for My Audio/Videos on iOS

If tapping on an audio or video file on your iPhone or iPad always opens it in Koala, you can change this:

1. Find the file in the Files app
2. Long press on the file
3. Tap Share (or Open In)
4. Choose a different app (e.g. Quick Look, VLC, Music, etc.)

iOS remembers your last choice per file type, so once you open a file with a different app it should stick.