Files downloaded from third-party mirrors or unverified links can carry risks:

Right-click the file and select "Extract here" or "Extract to [Folder Name]" . 2. How to Use the Content

Use WinRAR or 7-Zip (the latter is free and open-source).

If it's a mod for a game like The Sims 4 or Koikatsu , you usually place the extracted folder into the game's "Mods" or "UserData/Overlays" folder.

Because .rar is a compressed format, you will need a utility to open it:

The content of the .rar depends on what the creator provided: