Inserting CAD Files into Active SOLIDWORKS Files
You can insert non-native (*.catpart, *.ipt, *.par, *.prt) or neutral (*.iges, *.igs, *.jt, *.sat, *.step, *.stp) CAD files into an active SOLIDWORKS part or assembly file. You can also drag a non-native or neutral CAD file into an active SOLIDWORKS part or assembly file.