Cloudville.zip is a release file of the Minecraft map Cloudville, made for Minecraft 1.12. It was published on July 2, 2017 and is 4.4 MB in size. For the full description, screenshots and every other version, visit the Cloudville map page.
How to install: Extract the .zip and move the world folder into .minecraft/saves; the map then appears in your Singleplayer list.