PLT Export for SolidWorks is a HPGL Plot PLT file export add-in for SolidWorksВ®. This add-in gives SolidWorks the ability to export geometric data from a SolidWorks drawing document to a HPGL PLT file.PLT Export for SolidWorks reads curve data from a SolidWorks drawing document and converts it into corresponding pen movements in a HPGL Plot file.