'Returns a squared range based on the `range_string` parameter,
using generators.
:param range_string: range of cells (e.g. \'A1:C4\')
:type range_string: string
:param row: row index of the cell (e.g. 4)
:type row: int
:param column: column index of the cell (e.g. 3)
:type column: int
:rtype: generator'

def iter_rows(self, range_string='', row_offset=0, column_offset=0):

    return iter_rows(workbook_name=self._workbook_name, sheet_name=self._sheet_codename, xml_source=self._xml_source, range_string=range_string, row_offset=row_offset, column_offset=column_offset)
