The save file used for NG+ that spawns you in the Vanny ending room, How to use it in a run:

Load the save, once loaded in quit to the main menu and new game. Falling into the void will spawn you in the room.

Make sure to rename the save to 'SaveGameSlot1', Saves are stored in: C:\Users[you]\AppData\Local\fnaf9\Saved\SaveGames