I've recently learned that, if you have Steam backup files, you can avoid downloading large downloads from Steam.
Now, many of you know that on Google Play Store, some games (i.e. Asphalt, PUGM, WOT Blitz, etc.) download additional game files after installing. The download size can be massive sometimes. So I would like to know if there is a safe way of preserving those additional resource files so that next time when I reinstall the game, I don't have to wait for long to play it.