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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def fromxls(filename, sheet=None, use_view=True):
 """ Extract a table from a sheet in an Excel .xls file. Sheet is identified by its name or index number. N.B., the sheet name is case sensitive. """

    
    return XLSView(filename, sheet=sheet, use_view=use_view)