14:24:41 Enable Cell Caching using MemoryGZip method<br />14:24:41 Create new PHPExcel object<br />14:24:41 Set properties<br />14:24:41 Add data<br />14:24:41 Hide 'Phone' and 'fax' columns<br />14:24:41 Set outline levels<br />14:24:41 Freeze panes<br />14:24:41 Rows to repeat at top<br />14:24:42 Write to Excel2007 format<br />14:24:43 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 1.7021 seconds<br />14:24:43 Current memory usage: 23.5 MB<br />14:24:43 Peak memory usage: 26.75 MB<br />14:24:43 Done writing file<br />File has been created in /var/www/yii2/vendor/phpoffice/phpexcel/Examples<br />