validacion_formato

<?php
$tipo = isset($_REQUEST['formato']) ? $_REQUEST['formato'] : 'excel';
$extension = '.xlsx';

if($tipo == 'txt') {$extension = '.txt';}

// Si queremos exportar a PDF
if($tipo == 'txt'){

header('Expires: 0');
header('Cache-control: private');
header('Content-Type: application/x-octet-stream'); // Archivo de Excel
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header('Content-Description: File Transfer');
header('Last-Modified: '.date('D, d M Y H:i:s'));
header('Content-Disposition: attachment; filename="Reporte$extension');
header("Content-Transfer-Encoding: binary");
} else{

      header('Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet');
      header('Content-Disposition: attachment;filename="Reporte$extension"');
      header('Cache-Control: max-age=0');
    $objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel_Nuevo, 'Excel2007');
    $objWriter->save('php://output');
    exit;
}