What is .MAS file?
Game file used by rFactor, a racing simulation game; stores the asset files for a racing track map and includes files for both the structure and the appearance of the track; can be modded to create custom tracks, but modding is only for advanced users.
MAS files can be opened with the gMotor MAS File Utility (MAS.EXE), which is part of the "rFactor mod development tool pack" available from the rFactor website.
Recommended Software Programs to open .MAS file
- Image Space rFactor
- gMotor MAS File Utility