01:34:23 Enable Cell Caching using MemoryGZip method<br />01:34:23 Create new PHPExcel object<br />01:34:23 Set properties<br />01:34:23 Add data<br />01:34:23 Hide 'Phone' and 'fax' columns<br />01:34:23 Set outline levels<br />01:34:23 Freeze panes<br />01:34:23 Rows to repeat at top<br />01:34:24 Write to Excel2007 format<br />01:34:25 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 1.8264 seconds<br />01:34:25 Current memory usage: 18 MB<br />01:34:25 Peak memory usage: 24 MB<br />01:34:25 Done writing file<br />File has been created in /var/www/billing.andrewpeng.net/vendor/turbo124/phpexcel/Examples<br />