That's interesting because it goes even further than I'd have expected: that file formats themselves aren't protected. I guess that isn't surprising, since you'd want a market where programs could all compete to operate on the same files, but I don't remember that being talked about before (at least in reference to Oracle vs Google). And that does go to the format of the Java .class files.
I wonder what the EU courts would have to say about an encrypted file format...
I wonder what the EU courts would have to say about an encrypted file format...