Looking at the object names, much of it appears to be the same as a previous library I downloaded after reading your original post Pete. Oddly, I can't located the group I downloaded. Wonder if this is an enhanced version or maybe he's added more to the original group? Anyway, I've converted what I had (60 objects) for use in P3D, however I'm trying to find a way to contact the author as the readme says that basically nothing can be done with these without his permission. . .and of course he doesn't give you any way to contact him. Still looking into it.
<iframe style="display: none; width: 0px; height: 0px;" scrolling="no" class="igtranslator-iframe" src="about:blank" frameborder="0"></iframe>