Vendor/phpspreadsheet/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Worksheet/Worksheet.php
public function unprotectCellsByColumnAndRow($columnIndex1, $row1, $columnIndex2, $row2)
    {
        $cellRange = Coordinate::stringFromColumnIndex($columnIndex1) . $row1 . ':' . Coordinate::stringFromColumnIndex($columnIndex2) . $row2;

        return $this->unprotectCells($cellRange);
    }
public function unprotectCellsByColumnAndRow($columnIndex1, $row1, $columnIndex2, $row2)
    {
        $cellRange = Coordinate::stringFromColumnIndex($columnIndex1) . $row1 . ':' . Coordinate::stringFromColumnIndex($columnIndex2) . $row2;

        return $this->unprotectCells($cellRange);
    }
Remove protection on a cell range by using numeric cell coordinates.

@param int $columnIndex1 Numeric column coordinate of the first cell
@param int $row1 Numeric row coordinate of the first cell
@param int $columnIndex2 Numeric column coordinate of the last cell
@param int $row2 Numeric row coordinate of the last cell

@throws Exception

@return Worksheet