HPGL Import for IntelliCAD - Version 1.0 HPGL Import for IntelliCAD is a Hewlett Packard Graphics Language (HPGL) plot PLT file import plug-in for IntelliCAD powered applications. This plug-in gives IntelliCAD powered applications the ability to import geometric data from HPGL PLT files. HPGL Import for IntelliCAD is very easy to use as it adds a new command to the IntelliCAD powered application called "HPGLImport". Simply type "HPGLImport" at the command prompt and select a PLT