Information on how to extract zip files in Windows:
Save the downloaded zip file to the hard drive.
Right click on the file and select Extract all. This will open the extraction wizard.
Click Next and then select the location to extract the files to.
Click Next again and the extraction process will begin.
Make sure that the Show Extracted Files option is checked.
When complete, hit Finish.
If on Mac: Double-click the downloaded zip file to unzip.