Android intent filter: associate app with file extension

Question

I have a custom file type/extension that I want to associate my app with.

As far as I know, the data element is made for this purpose, but I can\'t get it working. h

Answer 1

Those who having issue with other File Manager\Explorer apps, as @yuku and @phyrum-tea answered

This works with LG default file manager app

but could not work with ES File Explorer and other File Managers so i added

 android:mimeType="*/*"

then it works with ES Explorer but LG file manager could not detect file type so my solution is