Notes about the VMT 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 VMT file type is primarily associated with 'Steam' by Valve Corporation. The Source engine technology, the same used to power Half-Life 2 is available to Steam subscribers. It provides enhancements in several key areas including character animation, advanced AI, real-world physics, and shader-based rendering to allow you to create game MODs. This is a text file that compiles to a .VTF file. It is written in the style of a C program.