public function protectCellsByColumnAndRow($columnIndex1, $row1, $columnIndex2, $row2, $password, $alreadyHashed = false)
    {
        $cellRange = Coordinate::stringFromColumnIndex($columnIndex1) . $row1 . ':' . Coordinate::stringFromColumnIndex($columnIndex2) . $row2;

        return $this->protectCells($cellRange, $password, $alreadyHashed);
    }