how and what does this tool do and how do i put it in my livesplit

You can't put it in a LiveSplit (probably), I've said it in a title that it's a "Cheat Engine Table", that you need to put in CheatEngine app. 

There isn't a tutorial for this table specifically, but there are a lot of tutorials explaining basics of the app, you can find some even on YT

Speedrun tools

avlbuilder

Crab Game

makmountaindew

Varnatix

Lava Climb

Macaroni Mountain

Sussy Sandcastle

Sussy Slope

16 Maps

18 Maps

22 Maps

Maps Amount

Speedrun Submissions

Hey im new to speedrunning this game

Discord server

pocogamer

CaptNinja6

Bostengard