I used my email address to download a licence file and the Glyph Designer app, but the licence file is not working. When I try to use it I get this message 'Glyph Designer cannot open files in the “Glyph Designer.app Document” format'.

The app I downloaded is the latest version of Glyph Designer. Why would the licence file not work with it? The file is "71S140914-2819-45104.glyphdesigner_license" but it does not work. What's going on?

I followed this link to get the licence and app https://71squared.com/licenses.
I even tried installing the latest trial version of Glyph Designer, but had no luck getting the licence to work on that either.