To select a file and load its viewable content, tap the Browse Files button. Then tap either All, Favorites, or Recent and select the file that has the content you want to view. The file loads in your screen.
Moving Between Files
If you have several files open, you can navigate between them by tapping Open at the bottom of the screen. All of the open files appear and you can select the one you want to view.
To close a file, tap the X in the Open Files list.