2] LibreCAD LibreCAD is a free and open-source 2D CAD application that lets you edit DWG files. Using it, you can edit DWG as well as DXF files in it. You can even design a new drawing from ...

How to Open DWG Files in Illustrator. The DWG format was originally designed by Mike Riddle in 1977 and licensed to AutoDesk Inc. in 1982 for creating two- and three-dimensional drawings.