Here’s a clear, step-by-step write-up you can use as a guide or post on a forum, blog, or modding community.
How To Install Tomb Raider 2013 Mods - Modding Tools & Manual tomb raider 2013 how to install mods
For 99% of users, "Package Mode" is what you want. Here’s a clear, step-by-step write-up you can use