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Most programs automatically append a filename extension for the appropriate type.
If you save a file as 'File.txt', typing the .txt, the chances are it will actually be named 'File.txt.txt' because the program will go ahead and add its three-letters worth. To see the full name of a file, use the Windows Explorer. How-To Book for 2000. In 1915, Methuen, the publishers of D.H. Lawrence's 'The Rainbow', were hauled into court and, as they offered no defence to an obscenity charge, the book was destroyed. No one bothered to notify Lawrence of the case.