A .rar file is a compressed archive. You will need a program like WinRAR or 7-Zip to extract its contents.
Files named "packs" or "collections" are commonly shared in the gaming community on platforms like Patreon , Tumblr , or The Sims Resource . The "JAN-17" prefix often refers to a monthly release date (January 2017). Installation: Extract the files from the .rar archive.
If it is for , place the extracted .package or .ts4script files into your Documents\Electronic Arts\The Sims 4\Mods folder.
