Notes about the VSO 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 VSO file type is primarily associated with 'NVIDIA' by NVIDIA Corporation. A vertex shader is a small assembly-language program used by Direct-X programs. When enabled, it replaces the transform- and lighting-computations of the fixed-function pipeline for vertices. The .VSO file is a compiled version of an .NVV file.