File extension CKO (.CKO) information

Windows cannot open CKO files?

If Windows is unable to open file extension .CKO you may have registry related errors or may not have the appropriate program installed. We strongly recommend that you run a free registry scan.

Appropriate program:

CKO is a file extension associated with KnockOut 2 Image Mask . Incorrect associations are the cause of many file extension errors. Scan your system to prevent, identify and repair CKO file extension association errors.


  • Performance: To optimize memory and CPU usage for CKO files run a free performance scan.
  • Stability: Fix CKO errors to make your system and applications more stable.
  • Drivers: Scan your PC for the outdated drivers which lead to system errors and slowdowns.

You are currently viewing the detail page for ABF file extension. This page contains a detailed description of the ABF file type, software tools to help resolve file association errors in the Windows registry together with relevant system utility applications and other related information.