pointblank Weapon_M-7Knife.i3Pack. how to extract animations?

[ZENHAXnumba1]

as the title says,does anybody known's this?, tried to read it raw , only contains names of the animation but there's no bones,weights.

[aluigi]

Not sure it's an archive, probably it's better for the 3d section of the forum.
I leave some keywords for who is interested: "I3R2" (*.i3chr and *.i3s) and "APF1" (*.i3danimpack)

[ZENHAXnumba1]

yeah wrong section lol :V (if possible , please move it in 3d section)
i'guess it only contains information in a animation file such as index, is it possible to store an animation+bone in a 1.7 kb ?