Available in both NSP and XCI formats for maximum compatibility.
It looks like you're referring to a for Labyrinth of Zangetsu (a first-person dungeon RPG by Acquire, released on Switch) — specifically the NSP/XCI format, including DLC and updates . Labyrinth of Zangetsu Switch NSP XCI -DLC Updat...
The world is being consumed by the "Ink of Ruin." Stay mindful of your resources; running out of supplies in the deep levels is a death sentence. Available in both NSP and XCI formats for
NSP files are used by the Nintendo eShop and contain game data. This format is typically used for digital distribution on the Nintendo Switch. NSP files can include the base game, updates, and DLC. Labyrinth of Zangetsu Switch NSP XCI -DLC Updat...