To use this update on a modded Nintendo Switch, you need an installer like (highly recommended for simplicity) or Tinfoil . Using DBI (USB Install): Connect your Switch to your PC via USB. Open DBI on your Switch and select "Run MTP Responder."
Are you installing this on a or an emulator ? DIGISURV-(USA)-NSwTcH-NSP-Update103-Ziperto.rar
Once extracted, you will have a .nsp file, which is the actual update package. To use this update on a modded Nintendo
Since the file ends in .rar , you first need to extract the contents using a tool like or WinRAR . Right-click the file and select "Extract Here" . you will have a .nsp file