Returns xls workbook object with everything from code_array

def from_code_array(self):
        """Returns xls workbook object with everything from code_array"""

        worksheets = []
        self._shape2xls(worksheets)

        self._code2xls(worksheets)

        self._row_heights2xls(worksheets)
        self._col_widths2xls(worksheets)

        return self.workbook