Notes about the QMX 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 QMX file type is primarily associated with 'Quantum Streaming' by Move Networks, Inc.. Quantum Streaming is a method of breaking up video files into small segments and then feed those segments to a player which recombines them into a video to show. It is sometimes used by ABC (and other media suppliers) for videos. The Move Media Player is used to play the video. The player should be provided as a browser add-in by the site feeding the videos.
Detailed information for file extension QMX:
File classification: Video
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.