It is used by Corel Draw and Appleworks and other similar programs. I do not know what formats those types of programs accept but we have a client who has requested files in that format.
I very much doubt that you can do this directly. They have to be able to tell you what file types they can import -- DWG or DXF or JPG -- something like that would be possible.
It looks like (from Corel's website) that CDraw 6 can import PDF files, though I don't think this is what WK3 is looking for. Maybe take a trawl through their forums and post the question there?
Highest Regards,
Alan T. Hendry, RA Intel i7-12700F (2.10 GHz) Desktop, 16GB RAM, 1TB SSD, Win 11 Home 64-bit, DC 23 w/ latest beta Intel i7-10750H (2.6GHz) Laptop, 16GB RAM, 1.5TB HD, Win 11 Home 64-Bit, w/ DC 22, 23 & latest beta