solidworks
3 Answers
"Use GrabCAD Workbench. Upload you sldprt file to workbench then you can right click on the uploaded file and select "download as". You can download the file in the format of STEP, IGES, STL, Parasolid, ACIS, JT, or VRML.
How to convert CAD files in Workbench"
Credit/Answer via user:
Sar Dar