Hi guys, i've faced the problem while exporting pivot table with so many columns into excel document.
here is my export.php code:
<?php
require_once "ppg.php";
$report = new ppg;
if ($_POST['laporan'] == "1") {
	$report->run()->exportToExcel(array(
		"dataStores"=>array(
			'status_ajuan'=>array(
				'rowDimension'=>'row',
				'columnDimension'=>'column',
				'measures'=>array(
                    'jml - sum',
				),
				'headerMap'=>array(
                    'jml - sum'=>'Propinsi - Kota',
				),				
				'totalName'=>'Grand Total',
			)
		)
	))->toBrowser('Laporan PPG Berdasarkan Status Ajuan.xls');
}
else if ($_POST['laporan'] == "2") {
	$report->run()->exportToExcel(array(
		"dataStores"=>array(
			'status_aktivasi'=>array(
				'rowDimension'=>'row',
				'columnDimension'=>'column',
				'measures'=>array(
                    'jml - sum',
				),
				'headerMap'=>array(
                    'jml - sum'=>'Propinsi - Kota',
				),				
				'totalName'=>'Grand Total',
			)
		)
	))->toBrowser('Laporan PPG Berdasarkan Status Aktivasi.xls');
}
else {
	$report->run()->exportToExcel(array(
		"dataStores"=>array(
			'prodi'=>array(
				'rowDimension'=>'row',
				'columnDimension'=>'column',
				'measures'=>array(
                    'jml - sum',
				),
				'headerMap'=>array(
                    'jml - sum'=>'Propinsi - Kota',
				),				
				'totalName'=>'Grand Total',
			)
		)
	))->toBrowser('Laporan PPG Berdasarkan Program Studi.xls');
}
for first and 2nd report, there is no problem:


but not for 3rd report, here is the error message while i open these document on excel:

all of data was lost


