With SOLIDWORKS 3D Interconnect technology, SOLIDWORKS Simulation users can now analyze parts and assemblies created in other CAD systems including PTC Creo, Autodesk Inventor, Siemens SolidEdge or NX, and Dassault Systemes CATIA. 3D Interconnect allows you to insert proprietary CAD data directly into a SOLIDWORKS assembly without converting it to a SOLIDWORKS file.