Notes about the CCK file extension:
To open this file type, a required software must be installed. Without it you only see a Windows message "The following file cannot be opened
" (Windows 7) or "How do you want to open this file?
" (Windows 10) if you double-click the file. There click on "More apps"
and choose a suitable software to view such files on your PC or from email attachments.
The CCK file type is primarily associated with 'Corel' by Corel. This file can be opened in Corel Draw and possibly other Corel products.
Detailed information for file extension CCK:
Primary association: Corel
File classification: Graphic
To change file associations press Windows Key
and then Apps and Features
> Default apps
> Choose default apps by file type
Invalid file associations could be the result of underlying issues within your Windows PC.