The format is OBJ, STL, 3dsMax. Model for printing on a 3d printer. Version 3ds max 2015 and higher.
STL (Stereolithography, filesize: 31 MB), OBJ (OBJ, filesize: 12.3 MB), FBX (Autodesk FBX, filesize: 4.3 MB), MAX (Autodesk 3ds Max, filesize: 8.5 MB)