I am trying to figure out how to deal with the fact that many strings in these files are either invalid utf-8 (and encoded in some other format?) or are simply not strings at all.
Take feerrott for example. Its main string hash has invalid utf8; it will fail to load altogether.
For feerrott_obj, the animated fire texture's TextureFragmentEntry's "file_name" parameter is an invalid string.
I'd love to try to figure this out - what tools did you use for examining these files?