.BK File Extension

2 file types use the .bk file extension.
File Type 1

FrameMaker Book File

Developer Adobe Systems
Popularity
3.1  |  109 Votes
Category Page Layout Files
Format N/A

What is a BK file?

A BK file contains a book created with Adobe FrameMaker, a program used to author, enrich, manage, and publish technical documentation. It contains pages that are formatted for print and may include text as well as raster and bitmap images. BK files were replaced with .BOOK files by FrameMaker.

More Information

You most likely will only encounter BK book files if you use early versions of Adobe FrameMaker to compose technical documents. The purpose of BK book files is to organize multiple pages (stored in .FM files) into one composition, much like a real-life book.

While books are an important aspect of FrameMaker, BK files are no longer commonly used by the software for saving books. In the mid-1990s, FrameMaker began saving books in version 5 with the .book file extension instead of the .bk file extension.

NOTE: Since the BK format is old and deprecated you should save your books in FrameMaker as BOOK files instead of BK files.

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Programs that open or reference BK files

Windows
Linux
Updated February 3, 2020
File Type 2

Smart Switch Backup

Developer Samsung
Popularity
3.0  |  12 Votes
Category Backup Files
Format Binary

What is a BK file?

SmartSwitchBackup.bk is a backup control file included in a backup created by Samsung Smart Switch. It contains data used to restore a user's data to a Samsung Galaxy phone. SmartSwitchBackup.bk is not meant to be manually opened by users.

More Information

Samsung Smart Switch is the official backup app used to transfer a user's contacts, photos, settings, call history, and other data from one Samsung Galaxy phone to another. Each Smart Switch backup contains several folders that contain encrypted files (such as .SNMM and .EXML files). Each backup also includes a BK file named SmartSwitchBackup.bk. SmartSwitchBackup.bk is the central file Samsung Smart Switch uses to restore the data a user's Smart Switch backup contains.

NOTE: Some versions of Samsung Smart Switch and Samsung Kies (a previous Samsung backup application) produce additional BK files, which contain specific subsets of your backup data.

How to open a BK file

SmartSwitchBackup.bk is not meant to be manually opened. You can use Samsung Smart Switch (Android, Windows, Mac) to restore a backup that contains a BK file(s) to your Samsung Galaxy device. You can also use MOBILedit Forensic Express (Windows) to load and browse a backup that contains a BK file(s).

Programs that open BK files

Updated December 16, 2021

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