I make a animation tool whitch can export .bild file and .anim file to scml you can open .scml file in Spriter   How to use this tool?  make sure .png, _anim.txt, _bild.txt are in the same folder drag .png file into Listbox select the .png file which you want unpack click "unpack" it will create a folder ,sliced files and .scml file will in it   It can't repack scml to gamefile now and I don't know howto import new animation and use it in the game  AnimationTools.zip https://github.com/fgc0109/OxygenNotIncludedDev/tree/master maybe has some bugs   ....    PS . massiveheatsink 's animation seems has bug   the anim bank named place  the second key and behind keys missing hierarchy item   说英语真是费劲啊  ... 大家凑活看吧