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CosmicDreams, posted Sat Oct 20, 2018 11:52 am (39741)

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Doesn't seem like a very complex format to me at least.

There are short 4 byte strings throughout the file that mention:
DTRA, DSCA, DROT, TRAI, TRAD

The last two im not sure about(They might not even be tags for parts of the file) but the first 3 are definitely Translation, Scale and Rotation.

The bottom of the file has a list of all the bones the mesh associated with the animation has.

https://cdn.discordapp.com/attachments/419711036837330956/503170533517688832/chr_her_rabbidluigi_acting_chapterwin_intro_01.anim
Here's the file for Rabbid Luigi's chapter win animation in Mario Rabbids.
And here is the model converted to FBX to apply the animation to.
https://cdn.discordapp.com/attachments/419711036837330956/503172364159156235/chr_her_rabbidluigi_tpose_01out.fbx

https://streamable.com/d5eum
In game example of the animation.
The format seems to be the same across every Snowdrop Engine game so there's that too i guess.