There are 21 other file types using
the BAK file extension!

empty icon.bak - RE-TOS backup

empty icon.bak - Grade Organizer backup

empty icon.bak - TBK Tracker deleted course INI data

bak icon.bak - Autodesk AutoCAD backup

bak icon.bak - Mozilla Firefox bookmarks backup

empty icon.bak - ACT! backup file

empty icon.bak - Canvas drawing backup

empty icon.bak - T-FLEX autosave file

empty icon.bak - FreeBSD data

empty icon.bak - VoCATS modified test backup

empty icon.bak - Linux installation data

empty icon.bak - Mineral Resources Data System (MRDS) database file

empty icon.bak - Visual UML (Unified Modeling Language) backup

empty icon.bak - AcqURL bookmarks backup

bak icon.bak - Corel WordPerfect document backup file

empty icon.bak - BSL background subtraction of image file

empty icon.bak - Essbase backup of security file

empty icon.bak - THEOS backup text

empty icon.bak - Finale backup

empty icon.bak - ProShow Producer backup

empty icon.bak - TED5 backup

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BAK file extension - Generally a backup created by various software applications

What is bak file? How to open bak files?

File type specification:

Backup file type icon Backup file type

The bak file extension is traditionally used for backups for decades.

Generally speaking, a bak file is a backup of original file, when the original extension is renamed to somename.bak. So, to restore original file, rename file to its original extension, if you know it, that is.

Many software apps also auto save with original documents or projects also a backup copy with the same file name.

Updated: October 23, 2018

Related articles:

Recover unsaved or corrupted documents

Help how to open:

Unless you know the original file extension or software that created this bak file, is close to impossible to determine which program may open a *.bak file.

How to convert:

BAK files are often just renamed original files or previous versions of original file, so renaming the extension back to its original usually restores the functionalily.

File-Extensions.org > Backup file types

 

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