13:07:25 Create new PHPExcel object
13:07:25 Set document properties
13:07:25 Add some data
13:07:25 Rename worksheet
13:07:25 Clone worksheet
13:07:25 Rename cloned worksheet
13:07:25 Write to Excel2007 format

Fatal error: Uncaught exception 'PHPExcel_Writer_Exception' with message 'Could not close zip file /var/www/html/PHPExcel/Examples/38cloneWorksheet.xlsx.' in /var/www/html/PHPExcel/Classes/PHPExcel/Writer/Excel2007.php:389 Stack trace: #0 /var/www/html/PHPExcel/Examples/38cloneWorksheet.php(103): PHPExcel_Writer_Excel2007->save('/var/www/html/P...') #1 {main} thrown in /var/www/html/PHPExcel/Classes/PHPExcel/Writer/Excel2007.php on line 389