To install: You must have the Unpack Dark Souls for Modding tool. https://www.nexusmods.com/darksouls/mods/1304 Once you have run it and unpacked the game files, move the "parts" file from the zip into the Dark Souls PTDE DATA folder, approving any messages about replacing files. The model replaces the Demon Great Machete Thanks so much to Meowmaritus for their DSFBX tool ( https://github.com/Meowmaritus/DSFBX ).