Convert csm to obj

What is the difference between .csm and .obj?

Description: The .csm file type is a 3ds Max Character Studio Maker File, which is a proprietary format used by Autodesk's 3D animation software. It contains data related to Character Studio, such as biped skeleton and morph targets, as well as animation data. The data can be used to create 3D characters for animation and games.; It is one of the most important files in 3D printing and graphics programs. OBJ is a neutral interchange format for storage of non-animated 3D models.