These files are stored using a compressed format that reduces file sizes and includes design information, graphics, and text.ĪutoCAD DXF (Drawing Interchange Format, or Drawing Exchange Format) is a CAD data file format developed by Autodesk for enabling data interoperability between AutoCAD and other programs. Autodesk 2D/3D drawing format was created as a device-independent and resolution-independent drawing format used to distribute designs.