I still use CraftRobo myself, but all my (FREE!) DXF files will open on Silhouette Studio.
Download and save the file to your computer. In Silhouette Studio, DXF may not be listed as a choice of files when you are trying to open it (depending on what version of SS you are using), but if you click FILE, OPEN, and then at the bottom click it to ALL FILES, you will be able to see and open the DXF file.
Carol
Extreme Cards and Papercrafting: pop up cards, movable and mechanical cards, digital crafts and unusual papercrafts.
http://extremecards.blogspot.com