[Question] How do i use .DXF files on atoll 2.8

[Xcelsium]

Hi all, i have a problem using .dxf files on Atoll 2.8, i just import a urban map from an autocad library in a DWG format, then i converted to DXF, i checked if the conversion was good and it was, after that i imported to Atoll 2.8 as a Geo file with 32 bytes and 32 bytes raster and got just a lot lines like this:
DXF on Atoll.jpg

well, i just was wondering if someone can help me on this matter.

Regards.