Your mods folder can be found by going to documents > electronic arts > sims 4 > mods and this is where you’ll put any cc and mods you want. What you need to do is head to any of the links listed below and download the file and once downloaded open up your downloads folder in one window and your mods folder in the other. Installing sims 4 CAS backgrounds is actually extremely easy and works just like installing any other piece of regular custom content.
Final Thoughts on Sims 4 CAS Backgrounds.