23:53:50 Enable Cell Caching using MemoryGZip method<br />23:53:50 Create new PHPExcel object<br />23:53:50 Set properties<br />23:53:50 Add data<br />23:53:50 Hide 'Phone' and 'fax' columns<br />23:53:50 Set outline levels<br />23:53:50 Freeze panes<br />23:53:50 Rows to repeat at top<br />23:53:50 Write to Excel2007 format<br />23:53:52 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 1.7017 seconds<br />23:53:52 Current memory usage: 23 MB<br />23:53:52 Peak memory usage: 26.75 MB<br />23:53:52 Done writing file<br />File has been created in /var/www/yii2/vendor/phpoffice/phpexcel/Examples<br />