I know that a lot of softwares do not recognize version 7 .pes. I use "professional" digitizing software for digitizing my designs but I like to use PE Design for lettering because it does a much better job on truetype fonts. But if I save as a version 7, my "professional" software will not open or import the file. It basically comes up with a message that stitch data is not there. But if I save down as a version 6, it doesn't have problems with it.