I’ve tried exporting to Blender in all three formats but none work, and get saved on my mac as text files and don’t open with Blender. Using Blender 2.9 and Macbook Pro (Catalina)
Hmm it should work.
I’m confused about this part, Nomad is just available on iOS and Android.
I’m wondering how you exported and imported the files.
I did an export as a .gltf (which actually exported as a .glb file) and sent the file to my icloud account. I then downloaded it onto my Windows PC and imported it into Blender 2.91.
It imported just fine and the only thing I noticed was that it didn’t have any materials applied to it.