14:02:14 Enable Cell Caching using MemoryGZip method<br />14:02:14 Create new PHPExcel object<br />14:02:14 Set properties<br />14:02:14 Add data<br />14:02:14 Hide 'Phone' and 'fax' columns<br />14:02:14 Set outline levels<br />14:02:14 Freeze panes<br />14:02:14 Rows to repeat at top<br />14:02:14 Write to Excel2007 format<br />14:02:16 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 1.6566 seconds<br />14:02:16 Current memory usage: 28 MB<br />14:02:16 Peak memory usage: 31 MB<br />14:02:16 Done writing file<br />File has been created in /var/www/yii2/vendor/phpoffice/phpexcel/Examples<br />