13:43:41 Create new PHPExcel object<br />13:43:41 Set document properties<br />13:43:41 Add some data<br />13:43:41 Sum of Range #1 is 23<br />13:43:41 Sum of Range #2 is 33<br />13:43:41 Sum of both Ranges is 56<br />13:43:41 Minimum value in either Range is 3<br />13:43:41 Maximum value in either Range is 17<br />13:43:41 Average value of both Ranges is 9.333333333333334<br />13:43:41 Rename worksheet<br />13:43:41 Write to Excel2007 format<br /><br />
<b>Fatal error</b>:  Uncaught Error: Class 'ZipArchive' not found in /home/tecsofec/public_html/clinica/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php:227
Stack trace:
#0 /home/tecsofec/public_html/clinica/vendor/phpoffice/phpexcel/Examples/03formulas.php(119): PHPExcel_Writer_Excel2007-&gt;save('/home/tecsofec/...')
#1 {main}
  thrown in <b>/home/tecsofec/public_html/clinica/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php</b> on line <b>227</b><br />