19:20:14 Create new PHPExcel object<br />19:20:14 Set document properties<br />Loading Africa<br />Loading Asia<br />Loading Europe<br />Loading North America<br />Loading Oceania<br />Loading South America<br />19:20:14 Write to Excel2007 format<br />19:20:14 File written to 39dropdown.xlsx<br />19:20:14 Peak memory usage: 2 MB<br />19:20:14 Done writing files<br />Files have been created in /var/www/yii2/vendor/phpoffice/phpexcel/Examples<br />