pack.zip is a release file of the Minecraft resource pack Sounds, but instead it's DreamWasTaken, made for Minecraft 1.16.1. It was published on September 28, 2020 and is 15.3 MB in size. For the full description, screenshots and every other version, visit the Sounds, but instead it's DreamWasTaken resource pack page.
How to install: Put the .zip into .minecraft/resourcepacks (do not extract it) and enable it under Options → Resource Packs.
