13:02:48 Load Test from Excel2007 file 32readwriteAreaChart1.xlsx<br />13:02:48 Iterate worksheets looking at the charts<br />Worksheet: Data<br />    chart1 - "Sales"<br />             areaChart<br />13:02:48 Write Tests to Excel2007 file <br />
Fatal error: Uncaught exception 'PHPExcel_Writer_Exception' with message 'Could not close zip file 32readwriteAreaChart1.xlsx.' in /var/www/www.pde.gov.gr/gr/php/gaies/PHPExcel-1.8/Classes/PHPExcel/Writer/Excel2007.php:389
Stack trace:
#0 /var/www/www.pde.gov.gr/gr/php/gaies/PHPExcel-1.8/Examples/32chartreadwrite.php(119): PHPExcel_Writer_Excel2007->save('32readwriteArea...')
#1 {main}
  thrown in /var/www/www.pde.gov.gr/gr/php/gaies/PHPExcel-1.8/Classes/PHPExcel/Writer/Excel2007.php on line 389