FNAF 1.zip is a release file of the Minecraft resource pack FNAF 1 Song Resource Pack, made for Minecraft 1.16.5. It was published on March 21, 2022 and is 3.5 MB in size. For the full description, screenshots and every other version, visit the FNAF 1 Song Resource Pack resource pack page.
How to install: Put the .zip into .minecraft/resourcepacks (do not extract it) and enable it under Options → Resource Packs.