No able to import dxf into PADS Layout to create board outline

Hi,

I try to import dxf into pads layout 9.5 to use it as board outline but I'm not able.

I use import dxf under drafting toolbard but when I change the line from 2D to board outline appair "SELF-INTERSECTIONG  POLYGON" and don't finish ok.

Also i like understant the dxf format that I can use to import dxf into pads.

In attachment the dxf original file.