Occasionally, you'll need to open several compressed files from one ZIP folder. While Windows does a fine job extracting, there are better tools to unzip.

Click the "Start" button, and then click "Computer" to open Windows Explorer. Navigate to the folder that contains the executable file of the tool that you use to extract ZIP files.

When you "zip" a file, you'll compress its data and reduce how much space it takes up on your computer or phone.

How to Open a Zip File in Excel 2007. A ZIP file usually contains several other files that have been compressed to a smaller size and bundled into a single package with a .zip filename extension.

You can send a zip file in Gmail if you want to send a large file to someone without using Google Drive.