The easiest way to find hidden files Remember that most of the time, what's actually hidden is specifically the Library folder. So if you can find that and get inside, you're done. And you can.

The basic files are the iTunes Library file, which contains information about all your songs, videos, and audiobooks, as well as your playlists.

It can be a scary prospect to go digging around your computer looking for specific files. Here's how to find Arduino libraries on Mac, PC, and Linux.