It’s like a bunch of coins put into a single pouch and zippedĬlosed, so it can be easily moved, transferred, or sent. What is a ZIP file?įiles, a ZIP file is a collection of files that have been compressed into a Here’s how to zip a file or folder on a Mac or a Windows PC. But then, how exactly are you going to upload the folders as attachments in an email? Well, the easiest way to do that is to turn them into a ZIP file. You visited so many places that you decide to organize them into folders. So you just went on a vacation with friends, and they’re asking for copies of your photos.