08:54:26 Create new PHPExcel object
08:54:26 Set document properties
08:54:26 Add some data
08:54:26 Add conditional formatting
08:54:26 Duplicate the conditional formatting across a range of cells
08:54:26 Write to Excel2007 format

Fatal error: Uncaught exception 'PHPExcel_Writer_Exception' with message 'Could not close zip file /data/web/konferencjalilly.pl/vendor/phpoffice/phpexcel/Examples/08conditionalformatting2.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/08conditionalformatting2.php(110): PHPExcel_Writer_Excel2007->save('/data/web/konfe...') #1 {main} thrown in /data/web/konferencjalilly.pl/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php on line 399