Where do the mods and cc go after installation? You should now be able to have your mods folder download complete. As in windows, this function exists from default. You can use ‘Keka’ to unzip your folders if you use a Mac.To download these files, you will not need a WinRAR or a 7-zip.If you face any troubles, you can always contact the website managers.You first need to go to a mod site that you like and install and extract your files from that site.The steps for sims 3 mods folder download are: To install the Sims 3 mods, follow the steps below.Where do the mods and cc go after installation?.