Extension Description Author File / Link
dwf Design Web Format Autodesk Deprecated resource Link
dwg OpenDWG Alliance site Deprecated resource Link
AutoCAD DWG File Format (in BFF Format) Frans F. J. Faase Deprecated resource Download
AutoCAD R13/R14 DWG File Specification Version 1.0 (RTF) OpenDWG Alliance Deprecated resource Download
dxf AutoCAD DXF version 13 File Format Autodesk Inc. Deprecated resource Download
AutoCAD DXF version 14 File Format (Windows Help format) Autodesk Inc. Deprecated resource Download
AutoCAD DXF version 14 File Format (html format) Autodesk Inc. Deprecated resource Download
AutoCAD DXF version 12 File Format Autodesk Inc. Deprecated resource Download
AutoCAD DXF version 10 File Format Autodesk Inc. Deprecated resource Download
Minimum Requirements for DXF Files Paul Bourke Deprecated resource Download
iges Draft for IGES 5.x Deprecated resource Link
slb AutoCAD Slide Libraries (.SLB and .SLD) Deprecated resource Download