The program is capable of identifying any chord written in a text file, which means that all you have to do is import the file in question into the program, and it will take care of the rest. Then, just hit the play button to listen to what those chords sound like together.
It's also relatively easy to create your own songs from within the program. You can use your keyboard to do that, writing at the same time as you listen to make things even simpler.
CampFire Guitar could be really useful as an educational tool. It's easy to use, has a simple interface, barely consumes any memory, works on any computer, and includes tutorials. In other words, it's perfect for any learner.