07:01:13 Enable Cell Caching using MemoryGZip method<br />07:01:13 Create new PHPExcel object<br />07:01:13 Set properties<br />07:01:13 Add data<br />07:01:13 Hide 'Phone' and 'fax' columns<br />07:01:13 Set outline levels<br />07:01:13 Freeze panes<br />07:01:13 Rows to repeat at top<br />07:01:13 Write to Excel2007 format<br />07:01:15 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 1.6742 seconds<br />07:01:15 Current memory usage: 23.25 MB<br />07:01:15 Peak memory usage: 26.5 MB<br />07:01:15 Done writing file<br />File has been created in /var/www/yii2/vendor/phpoffice/phpexcel/Examples<br />