05:47:36 Create new PHPExcel object<br />05:47:36 Set document properties<br />05:47:36 Add some data<br />05:47:36 Sum of Range #1 is 23<br />05:47:36 Sum of Range #2 is 33<br />05:47:36 Sum of both Ranges is 56<br />05:47:36 Minimum value in either Range is 3<br />05:47:36 Maximum value in either Range is 17<br />05:47:36 Average value of both Ranges is 9.333333333333334<br />05:47:36 Rename worksheet<br />05:47:36 Write to Excel2007 format<br /><br />
<b>Fatal error</b>:  Uncaught exception 'PHPExcel_Writer_Exception' with message 'Could not close zip file /data/web/konferencjalilly.pl/vendor/phpoffice/phpexcel/Examples/03formulas.xlsx.' in /data/web/konferencjalilly.pl/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php:399
Stack trace:
#0 /data/web/konferencjalilly.pl/vendor/phpoffice/phpexcel/Examples/03formulas.php(119): PHPExcel_Writer_Excel2007-&gt;save('/data/web/konfe...')
#1 {main}
  thrown in <b>/data/web/konferencjalilly.pl/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php</b> on line <b>399</b><br />