Place the files in your Documents/Electronic Arts/The Sims 4/Mods folder. Ensure "Enable Custom Content and Mods" is checked in your game settings. :
: Some modded versions (like those from ChippedSim often used alongside CC) allow for an actual inventory where you can "Put Stuff in Locker" or "Get Stuff from Locker". Made Locker at Leo Sims
Does anyone happen to have a link for LeoSims cc? It is Paywalled. Place the files in your Documents/Electronic Arts/The Sims
: Many of LeoSims' newer or highly detailed sets are initially released as "Early Access" for Patreon supporters before becoming public. Made Locker at Leo Sims