Notes about the C6 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 C6 file type is primarily associated with 'Ashlar-Vellum' by Ashlar Incorporated. Ashlar-Vellum is software for 2D and 3D wireframe or surface and solid modeling within a drafting, mechanical design, product design, analysis, or other drawing-related environment.