14:49:28 Create new PHPExcel object<br />14:49:28 Set document properties<br />14:49:28 Add some data<br />14:49:28 Add conditional formatting<br />14:49:28 Duplicate the conditional formatting across a range of cells<br />14:49:28 Write to Excel2007 format<br /><br />
<b>Fatal error</b>:  Uncaught Error: Class 'ZipArchive' not found in /var/www/html/planc/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php:220
Stack trace:
#0 /var/www/html/planc/vendor/phpoffice/phpexcel/Examples/08conditionalformatting2.php(110): PHPExcel_Writer_Excel2007-&gt;save('/var/www/html/p...')
#1 {main}
  thrown in <b>/var/www/html/planc/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php</b> on line <b>220</b><br />