To utilize an NSP file on original hardware, users typically employ custom firmware (CFW) and installation tools:
"EUA" typically represents the European version of the game. European releases of Switch games are significant because they often contain multiple language options. An "EUA" or "EUR" release of ARMS would likely contain English, French, German, Spanish, Italian, and potentially other languages, making it a versatile dump for preservationists across multiple continents. It confirms that this specific file originated from a European eShop download or a European physical cartridge. ARMS -01009B500007C000--v0--EUA-.nsp.rar