19:26:04 Create new PHPExcel object<br />19:26:04 Set document properties<br />19:26:04 Add data<br />19:26:04 Set data validation<br />19:26:04 Write to Excel2007 format<br /><br />
<b>Fatal error</b>:  Uncaught exception 'PHPExcel_Writer_Exception' with message 'Could not close zip file /var/www/html/vendor/phpoffice/phpexcel/Examples/15datavalidation.xlsx.' in /var/www/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php:399
Stack trace:
#0 /var/www/html/vendor/phpoffice/phpexcel/Examples/15datavalidation.php(128): PHPExcel_Writer_Excel2007-&gt;save('/var/www/html/v...')
#1 {main}
  thrown in <b>/var/www/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php</b> on line <b>399</b><br />