Intro:
This is a working comprehensive overview of animations in Xenoverse and where to find them. I'll update this in the future with any findings I have. Really fun stuff, I swear. Anything ending in ".cam.ean" is not an animation, it is the position of the game's internal camera for specific scene. I am yet to test if these can be swapped between the animation index. CAC skill animations are in /skills/, use this list to find the skill you want to edit.

Tip: press CTRL+F to find the info you're looking for quicker

Format:
XXX = Character Code
.../chara/XXX:
    XXX - moveset character animations

.../chara/CRC:
    CRC_XXX - character select screen

.../chara/CMN:
    CMN.ean - seems to be a lot of damage anims and a few character skills
    CMN.XXX.lby - lobby animations
    CMN.lby - certain npc lobby animations
    CMN.mis - quest emotes, standing and floating
    CMN.tal - tail-only animations template
    MCM.DBA - scene entrances, dragon ball pickup etc
    MCM.DBA.LHAND - holding 1 dragon ball template
    MCM.DBA.LRHAND - holding 2 dragon balls template

.../chara/DEM:
    D00.XXX - unknown use
    D01.XXX - unknown use
    D02.XXX - unknown use
    D03.XXX - unknown use
    D04.XXX - unknown use
    D05.XXX - unknown use