03:53:02 Enable Cell Caching using MemoryGZip method<br />03:53:02 Create new PHPExcel object<br />03:53:02 Set properties<br />03:53:02 Add data<br />03:53:02 Hide 'Phone' and 'fax' columns<br />03:53:02 Set outline levels<br />03:53:02 Freeze panes<br />03:53:02 Rows to repeat at top<br />03:53:03 Write to Excel2007 format<br />03:53:05 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 1.6896 seconds<br />03:53:05 Current memory usage: 23.75 MB<br />03:53:05 Peak memory usage: 26.75 MB<br />03:53:05 Done writing file<br />File has been created in /var/www/yii2/vendor/phpoffice/phpexcel/Examples<br />