สร้างไฟล์ csv จาก phpexcel

<?php
 
/* PHPExcel_IOFactory - Reader */
include 'PHPOffice/PHPExcel/Classes/PHPExcel.php';
 
$objPHPExcel = new PHPExcel();
 
/* Set default style */
$defaultStyle = $objPHPExcel->getDefaultStyle();
 
$defaultStyle->getFont()
    ->setName('Arial')
    ->setSize(11);
 
$defaultStyle->getNumberFormat()
    ->setFormatCode('yyyy-mm-dd');
 
/* Set document properties */
$title = 'Exports_Datas_' . date('Y-m-d_H:i');
$objPHPExcel->getProperties()->setCreator('Pitt Phunsanit')
    ->setCategory('Exports Datas')
    ->setDescription($title)
    ->setKeywords('Exports Datas ' . date('Y-m-d'))
    ->setSubject($title)
    ->setTitle($title);
 
/* rename sheet */
$objWorkSheet = $objPHPExcel->getActiveSheet();
$objWorkSheet->setTitle('Exports Datas');
 
for ($rowNo = 1; $rowNo < 10; $rowNo++) {
    for ($colNo = 0; $colNo < 5; $colNo++) {
 
        $insert = rand(0, 1);
        if($insert == 1) {
 
            $colString = PHPExcel_Cell::stringFromColumnIndex($colNo);
 
            $coordinate = $colString . $rowNo;
 
            $objWorkSheet->setCellValue($coordinate, 'ส่งออกข้อมูล -> '.$coordinate);
        }
    }
}
 
header('Cache-Control: max-age=0');
header('Content-Encoding: UTF-8');
header('Content-Description: File Transfer');
header('Content-Type: application/octet-stream');
header('Content-type: text/csv; charset=UTF-8');
header('Content-Disposition: attachment;filename="'.$title.'.csv"');
echo "\xEF\xBB\xBF"; /* UTF-8 BOM */
 
$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'CSV');
 
/* set Delimiter, (defaults ,) */
//$objWriter->setDelimiter('|');
//$objWriter->setEnclosure('');
/* Set line ending (defaults PHP_EOL) */
//$objWriter->setLineEnding('0x0d0a');
 
$objWriter->save('php://output');