21:37:18 Create new PHPExcel object<br />21:37:18 Set document properties<br />21:37:18 Add some data<br />21:37:18 Sum of Range #1 is 23<br />21:37:18 Sum of Range #2 is 33<br />21:37:18 Sum of both Ranges is 56<br />21:37:18 Minimum value in either Range is 3<br />21:37:18 Maximum value in either Range is 17<br />21:37:18 Average value of both Ranges is 9.3333333333333<br />21:37:18 Rename worksheet<br />21:37:18 Write to Excel2007 format<br /><br />
<b>Warning</b>:  ZipArchive::close(): Failure to create temporary file: Permiso denegado in <b>/opt/lampp/htdocs/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php</b> on line <b>388</b><br />
<br />
<b>Fatal error</b>:  Uncaught exception 'PHPExcel_Writer_Exception' with message 'Could not close zip file /opt/lampp/htdocs/vendor/phpoffice/phpexcel/Examples/03formulas.xlsx.' in /opt/lampp/htdocs/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php:389
Stack trace:
#0 /opt/lampp/htdocs/vendor/phpoffice/phpexcel/Examples/03formulas.php(119): PHPExcel_Writer_Excel2007-&gt;save('/opt/lampp/htdo...')
#1 {main}
  thrown in <b>/opt/lampp/htdocs/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php</b> on line <b>389</b><br />