: Select "Run MTP Responder" in DBI. Your Switch will appear as a drive on your PC.
: Connect your Switch to your computer via a USB-C cable and launch DBI on the Switch.
If you prefer using an installer app directly on the console:
To develop the content for the XIII-nsp.rar file, you need to extract the underlying Nintendo Switch game file and then install it on your console using a specialized tool. The .rar extension indicates a compressed archive, and the XIII-nsp inside is likely the 2020 remake (or the classic) of the cel-shaded shooter XIII in the Nintendo Submission Package ( .nsp ) format.