.ABU File Extension
File TypeAsus App Backup File
What is an ABU file?
Backup file created by App Backup, an app utility for Asus mobile devices used to backup apps and their data; may contain only data from an application, such as a game record, or data and the application; also includes password protection set by the user.
App Backup can be used to create ABU backup files and restore them as well. If you choose to only backup data, the ABU file will be a manageable size. However, if you choose to include data and the app, the ABU file will be a larger more unmanageable size.