Polygonal mesh file formats: Autodesk 3ds Max (.max), AutoCAD (.dxf), Maya (.ma), Wavefront Object (.obj), 3D Studio Binary (.3ds), Autodesk FBX (.fbx), 3D Studio ASCII (.asc), LightWave 3D (.lwo), VRML 2.0 (.wrl;),	Microsoft DirectX ASCII (.x), StereoLithography ASCII (.stl), COLLADA (.dae), X3D (.x3d). Downloaded 3D Models can be imported into Softimage, Cinema 4D, Blender, Modo, Unity, SketchUp, ZBrush, Poser and other 3D modeling software.
3D CAD Solid Objects file formats: STEP SOLID [AP214] (.step), IGES 5.3 NURBS (.iges). 3D CAD Solids can be imported into SolidWorks (.sldasm; .sldprt), Autodesk Inventor (.iam; .ipt), Pro/Engineer (.asm; .prt), SolidEdge, CATIA, ACIS and other CAD/CAM/CAE packages. 3D CAD models can be downloaded as polygonal 3D meshes also.