New Post: Open Existing XLS File & Edit it

require_once 'Classes/PHPExcel/IOFactory.php';

    $objPHPExcel = PHPExcel_IOFactory::load("default/ws-data.xls");

    $objPHPExcel->setActiveSheetIndex(0);

    $objPHPExcel->setCellValue('A2', $session_id);
    $objPHPExcel->setCellValue('B2', 'c5fnh09adtc0');

    $objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel5');
    $objWriter->save('ws-data.xls');