title: pythonocc loading .3md format
body: <p>In the pythonOCC examples CADViewerMDI.py the CAD format step, stp, iges, igs, and brep are suported.</p>
  
  <p>Do pythonOCC support the format ".3dm" and if, how do I load it.</p>
  
  <p>Supoptimal sulution:
  Change the format in rhino to one of the other formats.</p>