I have a Deswik .dcf file that I would like to import into Leapfrog.
Unfortunately, you can not import Deswik .dcf files directly into Leapfrog. However, you should be able to export the mesh as an *.omf file from Deswik and import the *.omf into Leapfrog.
To import an *.omf file into Leapfrog, go to the Leapfrog Main Menu (top left corner) > OMF > import.
If that doesn't work:
1. Convert the Deswik file to *.dxf, *.dng or *.dwg (must be done outside Leapfrog)
2. If you have access to Deswik (or can request this from the source), export the file as a .dtm or .dxf.