02:43:24 Enable Cell Caching using MemoryGZip method<br />02:43:24 Create new PHPExcel object<br />02:43:24 Set properties<br />02:43:24 Add data<br />02:43:24 Hide 'Phone' and 'fax' columns<br />02:43:24 Set outline levels<br />02:43:24 Freeze panes<br />02:43:24 Rows to repeat at top<br />02:43:25 Write to Excel2007 format<br />02:43:27 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 1.7008 seconds<br />02:43:27 Current memory usage: 23.75 MB<br />02:43:27 Peak memory usage: 26.75 MB<br />02:43:27 Done writing file<br />File has been created in /var/www/yii2/vendor/phpoffice/phpexcel/Examples<br />