We are ready and able to work with you on your electrical distribution needs, from transformer vault construction and high voltage power substation construction. The Robert Henry Corporation is the right choice for your high voltage electrical contractor.
Using Microsoft Visio. 1  1. Launch Microsoft Visio and click on âFile.â. 2  2. Click on âOpen.â. 3  3. Select âAutoCAD Drawing (*.dwg; *.dxf)â from the âFiles of typeâ list.  4. Navigate to the DWG file you want opened, then click âOpen.â Visio will open and display the DWG file.
AutoCAD Drawing. DWG is a file extension for an Autodeskâs AutoCAD drawing, or older generic CAD (computer-aided design) drawing files. CAD programs are used to create technical drawings and design plans by architects, engineers, drafters, artists and others. AutoCAD is currently the most popular CAD program.