Notes about the CKA file extension:
Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries, unused processes and other unfavourable system settings to identify slowdown issues.
The CKA file type is primarily associated with 'Comfort Keys' by Comfort Software Group. Comfort Keys is a hotkey manager. You can configure hotkeys for all of your actions and for automating repetitive or long tasks.