.CHK File Extension

InterCheck Checksum Database

Developer Sophos
3.9  |  117 Votes

What is a CHK file?

A CHK file is a database file that contains virus definitions for Sophos Anti-Virus. It is updated with InterCheck, a service that checks a central virus reporting system, and can be modified by changing the InterCheck reporting level and syslog configuration settings.

More Information

The InterCheck database is named "interchk.chk" by default. It is stored in the /​Program Files/​Sophos/​Sophos Anti-Virus/​Config directory on Windows computers.

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Programs that open or reference CHK files


Saved File Fragment

Developer Microsoft
3.9  |  41 Votes

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.

More Information

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.

Programs that open CHK files

Netgear Router Firmware File

Developer Netgear
3.3  |  27 Votes

File used by Netgear routers when updating the firmware; stores low-level system data that runs the router; can be used for applying router updates using the Netgear Web browser interface, which is often accessed at the local local network address.

Programs that open or reference CHK files


StarCraft Chunk File

Developer Blizzard Entertainment
3.2  |  19 Votes

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.

Programs that open or reference CHK files

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