.BACKUP File Extension

2 file types use the .backup file extension.

Android Backup

Developer Google
3.6  |  154 Votes

What is a BACKUP file?

A BACKUP file contains a backup created by various Android phones and tablets. It stores user information, such as contacts and user files, and is useful for archiving save points from your mobile device so the data can be restored if a problem occurs with the device. The BACKUP format has been replaced by the .AB format.

More Information

In the past, Android users could create BACKUP files by accessing their device's System Recovery Mode and selecting the option to back up their data. When the backup process finished, the BACKUP file(s) were saved to the Android device's SD card.

You will most likely encounter an Android BACKUP file only on the SD card of an Android device. Therefore, if you discover a BACKUP file on your computer, it was most likely created by a program on your computer, and is not an Android BACKUP file.

NOTE: Some Android devices split users' data across multiple BACKUP files, with extensions such as .BACKUP1, .backup2, and so on.

Common BACKUP Filenames

userdata_yyyymmdd_HHMMSS.backup - A BACKUP file, saved with a filename that includes the date and time at which the file was created.

How to open a BACKUP file

To restore a BACKUP file, first hold the power button and volume button on your Android device to start the device in System Recovery Mode. Then, select the option to restore user information from the System Recovery menu.

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Programs that open or reference BACKUP files

Included with OS

Garmin BaseCamp Backup

Developer Garmin
2.0  |  1 Vote

A BACKUP file may also be a backup file that contains a project created by Garmin BaseCamp. It is a Zip-compressed archive that stores all of the project data, including a .GDB GPS database and .GPI Garmin Point of Interest file. Garmin BaseCamp users create backups to preserve projects they can restore later in the software.

More Information

Screenshot of a .backup file in Garmin BaseCamp 4.8
BACKUP file open in Garmin BaseCamp 4.8

BaseCamp allows you to plan and share outdoor activities with others, such as hiking, biking, or road trips. You can also import past trips recorded on Garmin devices to relive it through the software.

If you want to preserve an activity in case the software crashes or if you want to transfer it to another BaseCamp installation, you can save it as a BACKUP file. To create a BACKUP file, select File → Backup.

Common BACKUP Filenames

BaseCamp_[YYMMDD].Backup - Default filename BaseCamp gives to BACKUP files where the "YYMMDD" represents the date. For example, if a BaseCamp creates a BACKUP file on March 25, 2024, the app names the file BaseCamp_240325.Backup.

How to open a BACKUP file

You can open a BACKUP file with Garmin BaseCamp in Windows and macOS. For example, to open a BACKUP file, select File → Restore.

Since BACKUP files are Zip-compressed, you can also open them with a Zip utility, such as Microsoft File Explorer (Windows) or Apple Archive Utility (macOS). For example, you can rename the .backup file extension to .zip, then extract its contents and view them with a Zip utility.

Programs that open BACKUP files


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