19:00:58 Enable Cell Caching using MemoryGZip method<br />19:00:58 Create new PHPExcel object<br />19:00:58 Set properties<br />19:00:58 Add data<br />19:00:58 Hide 'Phone' and 'fax' columns<br />19:00:58 Set outline levels<br />19:00:58 Freeze panes<br />19:00:58 Rows to repeat at top<br />19:00:59 Write to Excel2007 format<br />19:01:05 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 5.8462 seconds<br />19:01:05 Current memory usage: 27.75 MB<br />19:01:05 Peak memory usage: 31 MB<br />19:01:05 Done writing file<br />File has been created in /var/www/html/vendor/phpoffice/phpexcel/Examples<br />