To fabricgalore...I googled "embroidery design format for Janome 15000" and there is all kinds of info re the Janome 15000 and transferring designs, format, etc. You may need to reformat the fonts to .jef+. There are several free programs for this (as well as including other editing capabilities), and one that I use is the free MY EDITOR by Wings. Just goodle and D/L for free. Some have had difficulty understanding the program, but once you do, you can do a lot with it. I'd be happy to give you a kick start.