3D CAD document created with Drafix QuickCAD or Drafix Professional CAD; contains 3D objects and symbols used for creating home layouts and other designs.

Drafix is an older CAD program that was originally developed by Softdesk. It was purchased by Autodesk and has since been discontinued and replaced by AutoCAD. Drafix Software now develops landscape design programs.

DFX files may be converted to the standard .DXF format with AutoCAD.