If you actually found a file named like your fragment, it’s likely from a Switch save dump. The .n... tail might be part of game_data.sav.nx (encrypted) or system_data.sav .
: The title of the game, a turn-based RPG developed by Square Enix. BRAVELY DEFAULT II -01006DC010326000--v0--US-.n...
: Elvis's book was actually created by the Night's Nexus. To permanently destroy the entity, the party must destroy this book, which contains the collective memories and history of the world. The Ending If you actually found a file named like