text: RPF File Extension - Open .RPF File (AutoCAD pattern)
  Question: What is an RPF File?
  Have you found, downloaded or received an RPF file, but don't know which software program is required to open it?
  Before attempting to open an RPF file, you'll need to determine what kind of file you are dealing with and whether it is even possible to open or view the file format.
  Answer: Files which are given the .RPF extension are known as AutoCAD pattern files, however other file types may also use this extension. If you are aware of any additional file formats that use the RPF extension, please let us know.
  How to open a RPF file:
  The best way to open an RPF 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 RPF file.
  Tip: Try to open the RPF 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.