The archive contains 3ds max, obzh files, as well as an STL file for Artcam. You can use the model for cutting on CNC machines
Native Formats: MAX (Autodesk 3ds Max, filesize: 689 KB)
Exchange Formats: OBJ (OBJ, filesize: 40.3 MB), FBX (Autodesk FBX, filesize: 53.1 MB), STL (Stereolithography, filesize: 58.5 MB)