AutoCAD is a general purpose design and drafting software package for desktop computers and workstations.
AutoCAD includes a number of features that streamline data transfer between AutoCAD systems on different platforms and between AutoCAD and other software packages. To assist in interchanging drawings between AutoCAD and other programs, a Drawing Interchange file format (DXF) has been defined. All implementations of AutoCAD accept this format and are able to convert it to and from their internal drawing file representation.
A host of other modeling packages that run on desktop computers and workstations also support the AutoCAD DXF format.