> > Those are all Base64-encoded. Why do you want to decode them? FA2 does everything regarding that for you.

> I figured out the base 64 part myself, but there seems to be some kind of compression or encryption beyond that. As for why I want to, just curiosity really.

I cannot give you the exact format specification, as I signed an NDA. However you are right, there are compressed sections. The data is divided into several "sections", with the encoded and decoded size as header, if I remember well.