.dwg

DWG
Filename extension.dwg (plain)
.dws (standards)
.dwt (template)
Internet media typeimage/vnd.dwg
Developed byAutodesk, Open Design Alliance and others
Initial release1982 (1982)
Type of formatComputer-aided design
Open format?Open but Proprietary

DWG (from drawing) is a proprietary binary file format used for storing two- and three- dimensional design data and metadata. It is the native format for several CAD packages including DraftSight, AutoCAD, ZWCAD, IntelliCAD (and its variants), Caddie and Open Design Alliance compliant applications. In addition, DWG is supported non-natively by many other CAD applications. The .bak (drawing backup), .dws (drawing standards), .dwt (drawing template) and .sv$ (temporary automatic save) files are also DWG files.