The format is OBJ, STL, 3dsMax. Model for printing on a 3d printer. Version 3ds max 2015 and higher.
STL (Stereolithography, filesize: 55.2 MB), OBJ (OBJ, filesize: 50.9 MB), FBX (Autodesk FBX, filesize: 36 MB), MAX (Autodesk 3ds Max, filesize: 17.5 MB)