How does a zip file work, and how can you use it? Here's everything you need to know to master the art of sending massive files.

This article describes what ZIP files are and why they're used in some situations. We'll also look at how to open one to see its contents, and how to convert the files inside to a different format ...

What Does a Zip Folder Look Like?. While ZIP is far from the only file type for compressed archives, it is one of the most common, and works on any desktop operating system.

Windows ME/XP/2003 have built in ZIP file support. It is therefore, very easy to make and extract ZIP files using these operating systems.

RAR files are a counterpart to ZIP files, and can be quite nifty to work with. We explain what a RAR file is, and how to open RAR files.

We show you how to open & view ZIP files on iPhone or Android Mobile. You can use built-in feature or apps like Google Files or iZip.