Notes about the CQS 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 CQS file type is primarily associated with 'CADfix' by ITI TranscenData. CADfix provides a solution for the problems of data exchange and re-use between different engineering systems and applications. It allows the user to import CAD data and then to repair and manipulate it to a form most suitable for the downstream application.
Detailed information for file extension CQS:
File classification: CAD/CAM
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.