How to Convert DWG to DWF. The AutoCAD drafting software uses the DWG file extension to store full 2- and 3-D drawings and the DWF extension to store highly-compressed design data in vector form.

Thus, through this file, you can open a file in Revit that was originally created in Archicad, or vice versa, transporting its data. COBie (Construction Operations Building Information Exchange) ...