.MU File Extension
File TypeKerbal Space Program Mesh File
What is a MU file?
3D image file used by Kerbal Space Program (KSP), a game that allows players to build a space program; uses the filename model.mu and saves the space shuttle and other object data; uses a proprietary format only supported by the game.
The MU file is accompanied by the part.cfg file that references it as a mesh. There are also .MBM files referenced by the MU file that contain the textures for the model.
NOTE: KSP models are built using Unity modeling software.
model.mu - The 3D model mesh file used by Kerbal Space Program.