Instructions
Press the "Power" button on your PS3 to turn the gaming system on.
Scroll through the XMB main menu to the "Settings" option, then press the "X" button to select it.
Select the "LaunchELF" option in the Settings menu, and then press the "X" button to open it. The LaunchELF interface will open up on your screen.
Scroll to the "FileBrowser" option in the main menu, then press the "X" button. A listing of the accessible files will appear in the LaunchELF interface window.