1)   HPGL Import for SolidWorks 1.0
HPGL Import for SolidWorks is an add-in for SolidWorks. This add-in gives SolidWorks the ability to import graphical data from Hewlett Packard Graphic Language Plot files.

 2)   HPGL Import for Rhino 1.0
HPGL Import for Rhino is a plug-in for Rhino. This plug-in gives Rhino the ability to import graphical data from HPGL Plot (PLT) files.