01:07:40 Enable Cell Caching using MemoryGZip method<br />01:07:40 Create new PHPExcel object<br />01:07:40 Set properties<br />01:07:40 Add data<br />01:07:40 Hide 'Phone' and 'fax' columns<br />01:07:40 Set outline levels<br />01:07:40 Freeze panes<br />01:07:40 Rows to repeat at top<br />01:07:41 Write to Excel2007 format<br />01:07:43 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 1.9669 seconds<br />01:07:43 Current memory usage: 18 MB<br />01:07:43 Peak memory usage: 24 MB<br />01:07:43 Done writing file<br />File has been created in /var/www/billing.andrewpeng.net/vendor/turbo124/phpexcel/Examples<br />