ZIP is a file format that contain groups of files within a compressed "archive." This allows you to download an entire folder at once.
Simply click on the link to download. Once you've downloaded the file, you'll need to extract the files before opening them. To extract the files:
- In Windows, Right-click the .zip file and select Extract All
- In Mac, Double-click the .zip file
- On a mobile device, you may need to install an app such as ZArchiver for Android or iZip for iPhone iOS.