If you own a physical or digital copy of Night in the Woods on Switch and are using custom firmware (CFW) or an emulator (like Ryujinx or Yuzu) to play your personal backup, here is how you typically apply an update file:

Let’s decode the filename piece by piece:

The update file (often found as an NSP for digital installation) is approximately in size. It maintains all the content from the Weird Autumn expansion, including:

: Historically, players who swapped between a physical cartridge and a digital download noticed the game would "downgrade" from 1.0.2 to 1.0.1 because the digital servers hadn't been updated to match the cartridge.