Jumpstart.EXE.zip is a release file of the Minecraft map Jumpstart.EXE, made for Minecraft 1.7.10. It was published on August 17, 2014 and is 6.8 MB in size. For the full description, screenshots and every other version, visit the Jumpstart.EXE map page.
How to install: Extract the .zip and move the world folder into .minecraft/saves; the map then appears in your Singleplayer list.