17:09:02 Create new PHPExcel object<br />17:09:02 Add some data and formulas<br />17:09:02 Calculated data<br />Value of A1 [=B1]: 100<br />Value of B1 [=A1+1]: 100<br />Value of A2 [=B2+1]: 100<br />Value of B2 [=A2]: 99<br />17:09:02 Write to Excel2007 format<br /><br />
<b>Fatal error</b>:  Uncaught Error: Class 'ZipArchive' not found in /home/kleenoil/public_html/sistema/crons/lib/PHPExcel-1.8/Classes/PHPExcel/Writer/Excel2007.php:220
Stack trace:
#0 /home/kleenoil/public_html/sistema/crons/lib/PHPExcel-1.8/Examples/13calculationCyclicFormulae.php(82): PHPExcel_Writer_Excel2007-&gt;save('/home/kleenoil/...')
#1 {main}
  thrown in <b>/home/kleenoil/public_html/sistema/crons/lib/PHPExcel-1.8/Classes/PHPExcel/Writer/Excel2007.php</b> on line <b>220</b><br />