16:53:44 Create new PHPExcel object<br />16:53:44 Set document properties<br />16:53:44 Add some data<br />16:53:44 Sum of Range #1 is 23<br />16:53:44 Sum of Range #2 is 33<br />16:53:44 Sum of both Ranges is 56<br />16:53:44 Minimum value in either Range is 3<br />16:53:44 Maximum value in either Range is 17<br />16:53:44 Average value of both Ranges is 9.3333333333333<br />16:53:44 Rename worksheet<br />16:53:44 Write to Excel2007 format<br /><br />
<b>Warning</b>:  ZipArchive::close(): Failure to create temporary file: Permission denied in <b>/var/www/html/posystem/back-end-22-05-bkp/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php</b> on line <b>388</b><br />
<br />
<b>Fatal error</b>:  Uncaught PHPExcel_Writer_Exception: Could not close zip file /var/www/html/posystem/back-end-22-05-bkp/vendor/phpoffice/phpexcel/Examples/03formulas.xlsx. in /var/www/html/posystem/back-end-22-05-bkp/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php:389
Stack trace:
#0 /var/www/html/posystem/back-end-22-05-bkp/vendor/phpoffice/phpexcel/Examples/03formulas.php(119): PHPExcel_Writer_Excel2007-&gt;save('/var/www/html/p...')
#1 {main}
  thrown in <b>/var/www/html/posystem/back-end-22-05-bkp/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php</b> on line <b>389</b><br />