如何在PhpSpreadsheet中添加行？

use PhpOffice\PhpSpreadsheet\IOFactory;
use PhpOffice\PhpSpreadsheet\Spreadsheet;

$spreadsheet = new Spreadsheet();

$sheet = $spreadsheet->getActiveSheet();

$sheet->insertNewRowBefore(3);

$sheet->setCellValue('A3', 'Value A');
$sheet->setCellValue('B3', 'Value B');
$sheet->setCellValue('C3', 'Value C');

$writer = IOFactory::createWriter($spreadsheet, 'Xlsx');
$writer->save('path/to/save/file.xlsx');