Porfis as I made a page break in PHPEXCEL or PHPSPREADSHEET
PHPEXCEL
$objPHPExcel->getActiveSheet()->setBreak( 'A15', PHPExcel_Worksheet::BREAK_ROW );
PHPSPREADSHEET
$spreadsheet->getActiveSheet()->setBreak('A10', \PhpOffice\PhpSpreadsheet\Worksheet\Worksheet::BREAK_ROW);
I already found it in your manual, as it had been, for those who do not know it yet.