From: "M. Eteum" <meteum@...>
Date: 2005-06-02T01:00:23+09:00
Subject: Document identification

Dear Ruby Guru:
      Is there a way to identify any documents from its header? I have a 
bunch of document collected over the year from multi platform system, 
Mac, Windows, and various unix/linux variant where some of the document 
does not have file extension. Are there a list that tells us what header 
should we expect for certain documents e.g. txt, rtf, pdf, jpg, mpg, 
word, excel, visio, etc ...

Thanks