Mathcad and prime file extensions
I am using Mathcad 15. I have downloaded many zipped XMCD files from this community site in the past. Now whenever I search topics regarding queries I have, the attached zipped files now seem to always be MCDX which I believe is a Prime file. When extracted these files are "greyed" in the file explorer and will not open. Is there something I need to do to convert to Mathcad format?
Many Thanks
Ross

