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CHK File

What are CHK files and how to open them

Are you having problems opening a CHK file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your CHK files.

What is a CHK file?

CHK files have multiple uses, and CHKDISK Fragment is one of them. Read more about the other uses further down the page.

CHKDISK Fragment File

The .chk file extension is also associated with Windows file fragments. These file fragments are fragments of files that have been cleaned from the hard drive by the ScanDisk or CHKDISK disk checking applications.

The Windows operating system runs the ScanDisk and CHKDISK checking applications to find errors that may be located on the hard drive. These errors are then written out as CHK files. Often these files can be removed, as the information contained within them is also stored elsewhere on the user's computer.

How to open CHK files

Important: Different programs may use files with the CHK file extension for different purposes, so unless you are sure which format your CHK file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested four different CHK openers which you will find listed below.

Last updated: March 10, 2023

All known file formats using extension .CHK

While CHKDISK Fragment File is a popular type of CHK-file, we know of 3 different uses of the .CHK file extension. Different software may use files with the same extension for different types of data.

PolySpace Check Results File

We know that one CHK format is PolySpace Check Results File. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

SCCS Checksum

We know that one CHK format is SCCS Checksum. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

Various apps that use files with this extension

These apps are known to open certain types of CHK files. Remember, different programs may use CHK files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about CHK file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.