NSP (Nintendo Submission Package): This is the standard format for digital titles found on the Nintendo eShop. Pokemon UNITE is a free-to-play digital title, meaning its core architecture is natively built as an NSP. These files are typically installed directly to the console's internal storage or SD card.
For most users, the update will download automatically when connected to the internet. If you are managing files manually on a modded console: Pokemon UNITE Switch NSP XCI UPDATE
Released "Long-Range Tactics Part 2" content. Nintendo Switch File Formats NSP (Nintendo Submission Package): This is the standard