Instead, I keep PDF Expert installed in order to handle ZIP files. Yes, ZIP files. Turns out, PDF Expert is one of, if not the best app, for unpacking and creating ZIP files.

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.

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.