I have a question before i am gonna buy an Apple TV unit. Let me explain the situation: Full HD TV --> Apple TV --> RJ45 cable --> Computer i am working constantly in a Excel sheet on the Computer. When done, i place it on an usb stick, put it in the pc behind the TV and place it there to show it on the screen in the lunchroom. I want to remove the pc (too much power for just an excel sheet) and replace it with an Apple TV unit. Is it possible that a Apple TV can display the Excel sheet trough the RJ45 on the Full HD TV? or is it just an Apple thing like with the iPad that only some programs can be shown on the screen?