Honestly I have no idea. I only wok with PSDs, PNGs and JPGs of course.
I just found such files in game data. As I understand this files contain sprites, but it’s not zip-package.
How you upload new images in game or it’s not your part of work?
UDP, this files contains info about position of image :)
So, do you know name of this sprites? What kind of locations is it for?
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