Since the file ends in .rar , you first need to extract its contents on your computer. Use a tool like 7-Zip or WinRAR.
Right-click the file and select "Extract Here." This should produce a file with a .NSP extension (the actual game data). 2. Installation Methods GASTATIONSIM-(USA)-NSwTcH-[BASE]-NSP-Ziperto.rar
To use this file on a Nintendo Switch, your console must have custom firmware (CFW). There are two primary ways to install it: Connect your Switch's microSD card to your computer. Since the file ends in