If you get them via torrent, you don’t have a valid license for them as you are not allowed to share/download them from 3rd party sources. Fastest legit way of getting them all is not that fast but is what I do myself. Just browse through all anims (there are 2400+) and add them individually to your own collection. One collection can hold up to 75 anims so you’ll end up with 33 collections.
Do note that if you want to later on change the character/skeleton from the collection, you can do that by changing the char and then do something with the collection name so it lets you resave it (I usually just add space and delete space for that).
Once you have the collections, you can download them again with various export settings.