Credit to ExtrudedS on Twitter for the steps, this is verbatim what they told me to do

It is a bit involved though and I might not remember all the configuration steps perfectly.
Main thing program you need is called Fmodel which is used to extract the files from MVS.

Once you open that up go to "Directory -> selector" in the top left and set the UE version to UE5_1 and the directory to where ever you have multiversus installed (such as Steam\steamapps\common\MultiVersus\MultiVersus\Content\Paks )

Up in directory you will need an AES key as well, which this should work 0x419DFFC484F1CED86842DD4E6DD914F02E3E119725F556C4B9AA44432021A9AC

Under settings you will need a mapping file and to enable "Local Mapping File", I had to grab it from the fmodel discord for mvs. Idk if this link will link to it properly https://discord.com/channels/637265.....88823988666428

After all that you should be able to open up the .pak file and actually start exporting stuff

The characters are under MultiVersus/Content/Panda_Main/Characters and the animations are under MultiVersus/Content/Character
They export as .psk which you will need an addon in Blender to import them if you are using that

I think that mostly everything