An is a 1:1 digital backup of a physical Nintendo Switch game cartridge. Unlike NSP files, which are digital-only eShop copies, XCI files act as a mirror of the actual cartridge data, often including the base game and system update data.

Released on the Nintendo Switch in 2021, this package includes two distinct experiences:

The keyword relates to technical file management for the Nintendo Switch game Super Mario 3D World + Bowser’s Fury . Specifically, it refers to a verified cartridge image (XCI) file associated with the game's unique Title ID prefix (010028). Understanding XCI and Verified Files