Opening Third-Party CAD Files in SOLIDWORKS To open a third-party CAD file in SOLIDWORKS: Click File > Open. Optional: 3DEXPERIENCE Users: If the Open from 3DEXPERIENCE dialog box appears, click This PC. In the dialog box, in Files of type, select the third-party CAD file. Click Options. In the System Options dialog box, set options, including: Option Description File Format Sets the third-party CAD file format. Entities to Read From 3rd Party CAD Files Reads the selected items from the third-party CAD file: Solid Body Surface Body Reference Plane Reference Axis Unconsumed Sketch(es) and Curves Custom Properties Material Properties Ignore Hidden Entities Disregards the hidden entities. Import tool bodies from UG NX Imports tool bodies from Unigraphics and NX. Click OK. Click Open. The third-party CAD file opens in SOLIDWORKS. The 3D Interconnect references for assemblies and sub-assemblies are dissolved and corresponding SOLIDWORKS assembly and part files are created for each component reference. The SOLIDWORKS part file contains the 3D Interconnect feature link to the third-party CAD part file. Parent topicSOLIDWORKS 3D Interconnect Opening Non-Native Assemblies with Reference Files Located in Different Folders Editing a Third-Party CAD File in SOLIDWORKS Breaking the Link from the Original Part File Additional Information Supported for Reading from Third-Party CAD Files Support for JT Files in SOLIDWORKS Importing STEP, IGES, and ACIS Files in SOLIDWORKS Reading Tessellation Data from Third-Party CAD Files Importing IFC Files Importing DXF and DWG Files Canceling the Import of Third-Party CAD Files Exporting SOLIDWORKS Files to Non-SOLIDWORKS File Formats