A .DXF (Drawing Interchange Format) file is a type of ASCII file that can be read by most CAD (Computer-Aided Design) programs, including AutoCAD, IntelliCAD, and other programs that support the DXF format. DXF files can store 2D and 3D design data and metadata, like .DWG files. Autodesk developed the DXF file format to exchange data between AutoCAD and other programs, and many other CAD applications widely support it.