Larian Studios Forums Divinity - Original Sin Divinity Original Sin - Mods Newbie Question: Legendary Items Mod?

Hey there.
I've been searching everywhere but I couldnt find a tutorial/guide about exactly how to create a legendary items mod.
Everything I found points to unpack main.pak, open the extracted all.xlsm and edit treasuretable although the only all.xlsm file I find it's in the Editor\Templates folder.

Yeah... I basically lost.

Is there a complete tutorial about this (or something like that)?

Thanks!