.backup is Android Backup File
Key Features: .BACKUP File Extension
What is an .BACKUP file?
The backup file extension with the ISAPI Loader, a utility that allows IIS administrators to actualize ISAPI applications and ISAPI DLLs without restarting IIS servers.
The backup file stores backup of current ISAPI application.
Files with backup file extension can be generally found as various backups from different programs.
How to open:Use ISAPI Loader to work with *.backup files.
How to convert:Conversion to other formats is not possible.
- Google Android