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.
The .dwg file extension stands for drawing. One of the oldest file types, it was initially conceived in the 1970s for use with the early Computer Aided Design (CAD) devices for 2D and 3D drawings. The DWG format is licensed to Autodesk for their AutoCAD application which is the de facto standard for CAD drawings. Autodesk have robustly resisted attempts to reverse engineer the DWG format by other freeware applications building watermark protection into certain versions.