10:52:28 Create new PHPExcel object<br />10:52:28 Set document properties<br />10:52:28 Add some data<br />10:52:28 Sum of Range #1 is 23<br />10:52:28 Sum of Range #2 is 33<br />10:52:28 Sum of both Ranges is 56<br />10:52:28 Minimum value in either Range is 3<br />10:52:28 Maximum value in either Range is 17<br />10:52:28 Average value of both Ranges is 9.3333333333333<br />10:52:28 Rename worksheet<br />10:52:28 Write to Excel2007 format<br /><br />
<b>Warning</b>:  ZipArchive::close(): Failure to create temporary file: Permission denied in <b>/opt/br/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 /opt/br/vendor/phpoffice/phpexcel/Examples/03formulas.xlsx. in /opt/br/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php:389
Stack trace:
#0 /opt/br/vendor/phpoffice/phpexcel/Examples/03formulas.php(119): PHPExcel_Writer_Excel2007-&gt;save('/opt/br/vendor/...')
#1 {main}
  thrown in <b>/opt/br/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php</b> on line <b>389</b><br />