The DXF extension exports your visible map to DXF or Binary DXF format at a 1:1 scale when possible.

DXF (Drawing Exchange Format) is a file format that Autodesk developed for exchanging CAD (Computer-Aided Design) data between different programs. Because DXF is an open format, it's ideal for sharing data between different CAD systems.

When you export to DXF, the map and all selected layers are exported and available for download.