21:47:02 Create new PHPExcel object<br />21:47:02 Set document properties<br />21:47:02 Add some data<br />21:47:02 Rename worksheet<br />21:47:02 Clone worksheet<br />21:47:02 Rename cloned worksheet<br />21:47:02 Write to Excel2007 format<br /><br />
<b>Fatal error</b>:  Uncaught Error: Class 'ZipArchive' not found in /var/www/html/includes/PHPExcel/Classes/PHPExcel/Writer/Excel2007.php:220
Stack trace:
#0 /var/www/html/includes/PHPExcel/Examples/38cloneWorksheet.php(103): PHPExcel_Writer_Excel2007-&gt;save()
#1 {main}
  thrown in <b>/var/www/html/includes/PHPExcel/Classes/PHPExcel/Writer/Excel2007.php</b> on line <b>220</b><br />