Re: PTC Mathcad Prime 3.0 - Converter

I solved this issue by installing Mathcad 15 and entering its license information. I located and selected the license file from the folder where I saved it when I donwloaded Mathcad 15. After Mathcad 15 was installed, I  saved the files I made in Mathcad 11 (and older versions) as Mathcad 15 files. After that, I was able to convert the old files by following the instructions the converter gave me. It was very straight forward. I hope it helps you