PC.net

.chk

File Type 1 Generic IconSaved File Fragment
File Format Standard (developed by Microsoft)
Usage Open manually
Rank ★ ★ ☆  Average
Description

Windows file fragment cleaned from the hard disk by ScanDisk or CHKDISK; stored in the FOUND folder after a disk scan has been performed; typically can be deleted since the information has been moved somewhere else on the disk.

The program CHK-Mate can be used to examine the contents of a CHK file before it is removed. Also, UnCHK and FileCHK can be used to recover data from CHK files.

Open With
Windows

IconDIY DataRecovery CHK-Mate

IconUnCHK

IconFileCHK

Updated 2007
File Type 2 Generic IconInterCheck Checksum Database
File Format Proprietary (Sophos)
Usage Referenced by an application; not meant to be opened manually
Rank ★ ☆ ☆  Uncommon
Description

A Sophos CHK file is a database file used by Sophos Anti-Virus. It is named interchk.chk by default and contains a list of virus definitions.

The database is updated by InterCheck, a service included with Sophos Anti-Virus. InterCheck regularly checks an online server for updated virus information and downloads new definitions.

Open With
Windows

IconSophos Anti-Virus for Windows

macOS

IconSophos Anti-Virus for Mac

Unix

IconSophos Anti-Virus for Linux

Updated July 1, 2009
File Type 3 Generic IconStarCraft Chunk File
File Format Proprietary (Blizzard Entertainment)
Usage Referenced by an application; not meant to be opened manually
Rank ★ ★ ☆  Average
Description

Uncompressed Starcraft map included with the Blizzard installer CD; similar to a .MPQ formatted file, such as a .SCM or .SCX scenario file, but is not compressed into an archive format.

Open With
Windows

IconBlizzard StarCraft

macOS

IconBlizzard StarCraft

Updated 2007
Information from the PC File Extensions Reference
https://pc.net/extensions/file/chk
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