BAK1

Backup format
File type: Backup file
A bak1 file extension is traditionally used for backup files, often can be recovered by simply renaming to the original file suffix.
What is bak1 file?
File type category:
Backup file
Date updated: September 25, 2017
The bak1 File extension is for a long time used for backups.
Generally a bak1 file is a backup of original file, when the original extension is renamed to somename.bak1.
So, to restore original file, rename file to its original extension, if you know it, that is.
How to open bak1 file?
Use compatible tools to work with *.bak1 files.