code: def ToTsvExcel(self, columns_order=None, order_by=()):
      
      csv_result = self.ToCsv(columns_order, order_by, separator="\t")
      if not isinstance(csv_result, six.text_type):
        csv_result = csv_result.decode("utf-8")
      return csv_result.encode("UTF-16LE")
docs: Returns a file in tab-separated-format readable by MS Excel.
  
      Returns a file in UTF-16 little endian encoding, with tabs separating the
      values.
  
      Args:
        columns_order: Delegated to ToCsv.
        order_by: Delegated to ToCsv.
  
      Returns:
        A tab-separated little endian UTF16 file representing the table.