The .rar format is a compressed archive. You must extract it first to access the actual game and update files:

To prepare the file for use on a Nintendo Switch, you need to extract the contents and then install the resulting .nsp file using a compatible homebrew installer. 1. Extract the Archive

You should see one or more files ending in .nsp . For "Update 1.0", you will typically have a base game file and a separate update file. 2. Prepare Your Switch

You can transfer the files to your microSD card or install them directly from your PC via USB. Recommended Installers:

Widely considered the most stable tool. It includes a "MTP Responder" mode that allows you to drag and drop files from your PC directly into a "Switch" drive.

Ensure your Nintendo Switch is running such as Atmosphère .

A popular alternative that supports network and USB installs. 3. Installation Steps (via DBI) Connect your Switch to your PC via a USB-C cable. Launch DBI from your Switch's Homebrew Menu. Select "Run MTP Responder" .