Auto Cad To HFSS 11 Import Problem

I am trying to import the attached Spiral.dxf file in to HFSS 11.It is not showing any error during the process of importing the file but HFSS is not showing the structure also.Help me.

sorry, i have no idea, but i do have used it the other way, and now i would also like to know about this.

If you post it in a zip file, or other compression program which is fully open, I'll try it in HFSS 14. But I refuse on principle to open rar files unless I really need to. There are plenty of good compression algorithms for which both the compression and decompression algorithm is public.

Deborah.