When you download something on a desktop computer, it’s easy to find. Simply, open up the hard drive folders and look for what you just downloaded. But on iOS devices, it gets a bit more difficult.

If you're on a computer for much of the day, downloading files is likely to be a regular part of your workflow. That could be from an email attachment, a messaging app, or through a web browser.

Your phones and computers hold more than you might realize. The files that you can view by default on Windows, macOS, Android, and iOS are by no means everything that's stored on those systems. These ...