Drop the .package file directly into the folder. Avoid placing it more than one sub-folder deep to ensure the game recognizes it.
If animations don't appear, try deleting the localthumbcache.package file in your Sims 4 folder to refresh the game's mod data. Drop the
Open your Sims 4 "Mods" folder (usually found in Documents \ Electronic Arts \ The Sims 4 \ Mods ). Drop the