00:29:28 Enable Cell Caching using MemoryGZip method<br />00:29:28 Create new PHPExcel object<br />00:29:28 Set properties<br />00:29:28 Add data<br />00:29:28 Hide 'Phone' and 'fax' columns<br />00:29:28 Set outline levels<br />00:29:28 Freeze panes<br />00:29:28 Rows to repeat at top<br />00:29:29 Write to Excel2007 format<br />00:29:31 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 1.6908 seconds<br />00:29:31 Current memory usage: 23.75 MB<br />00:29:31 Peak memory usage: 26.75 MB<br />00:29:31 Done writing file<br />File has been created in /var/www/yii2/vendor/phpoffice/phpexcel/Examples<br />