It should promt you to merge and overwrite files, select yes to all.Extract the ZBL_Patch.zip to your Borderlands directory.Download all of the resources listed above.These are the resources you will require to begin your modding. This is for the latest version of Borderlands 3. In this tutorial you will learn how to play custom content and enable the level editor with step by step instructions. How to Create Borderlands 3 Mods? How to Create Borderlands 3 mods for PC