If you are looking for the raw file, it is stored in the protected system directory. You need a rooted device or a file explorer with advanced capabilities to access this directly.
For regular play, rely on official cloud syncing to ensure your bird levels and gems are secure. angry birds 2 save file top
: Copy the entire SAVE folder to a different location on your device or computer. The Revert Loop : Advance a few floors and choose a card. If you hit a pig, close the game immediately. If you are looking for the raw file,