Updating the default player for audio file types
Tip: Try to open the RNX file using a text-editor such as Notepad, as many file types contain simply contain unformatted plain-text and can viewed correctly using this method.
Have you found, downloaded or received an AUPF file, but don't know which software program is required to open it?
If you have installed Mozilla Firefox and want it to be the default browser, follow the steps below.
How to open a AUPF file: The best way to open an AUPF file is to simply double-click it and let the default assoisated application open the file.
If you are unable to open the file this way, it may be because you do not have the correct application associated with the extension to view or edit the AUPF file.
If there are any file types you do or do not want to be associated with Real Player, follow the steps below.
Winamp is a media player that associates itself with audio and video files that it is capable of opening.