The Workbook Object
===================

.. class:: Workbook(encoding='ascii', style_compression=0)
  
   This is a class representing a workbook and all its contents.
   When creating Excel files with xlwt, you will normally start by
   instantiating an object of this class.
   
   :param str encoding: standard python encoding identifier
   :param int style_compression: ???

.. method:: Workbook.add_sheet(sheetname)

   This method is used to create Worksheets in a Workbook.
   
   :param str sheetname:
      The name to use for this sheet, as it will appear in the tabs at
      the bottom of the Excel application.
   :returns: :class:`Worksheet` object
	  
.. method:: Workbook.save(filename)

   This method is used to save Workbook to a file in native Excel format.
   
   :param filename:
      This can be a string containing a filename of the file, in which case
      the excel file is saved to disk using the name provided.
	  
      It can also be a stream object with a write method, such as a
      StringIO, in which case the data for the excel file is written
      to the stream.