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.

In this guide, we'll show you the different ways to reduce the size of a Microsoft Excel spreadsheet to make it easier to share and store.

Zip files compress your folders or files and save storage on your computer. They're also easier to send from device to device. Here's how to make one.