10:06:53 Create new PHPExcel object<br />10:06:53 Set document properties<br />10:06:53 Add some data<br />10:06:53 Add conditional formatting<br />10:06:53 Duplicate the conditional formatting across a range of cells<br />10:06:53 Write to Excel2007 format<br /><br />
<b>Fatal error</b>:  Uncaught Error: Class 'ZipArchive' not found in /var/www/html/API/class/PHPExcel-1.8/Classes/PHPExcel/Writer/Excel2007.php:220
Stack trace:
#0 /var/www/html/API/class/PHPExcel-1.8/Examples/08conditionalformatting2.php(110): PHPExcel_Writer_Excel2007-&gt;save()
#1 {main}
  thrown in <b>/var/www/html/API/class/PHPExcel-1.8/Classes/PHPExcel/Writer/Excel2007.php</b> on line <b>220</b><br />