14:59:04 Enable Cell Caching using MemoryGZip method<br />14:59:04 Create new PHPExcel object<br />14:59:04 Set properties<br />14:59:04 Add data<br />14:59:04 Hide 'Phone' and 'fax' columns<br />14:59:04 Set outline levels<br />14:59:04 Freeze panes<br />14:59:04 Rows to repeat at top<br />14:59:05 Write to Excel2007 format<br />14:59:07 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 1.9445 seconds<br />14:59:07 Current memory usage: 22 MB<br />14:59:07 Peak memory usage: 24 MB<br />14:59:07 Done writing file<br />File has been created in /var/www/billing.andrewpeng.net/vendor/turbo124/phpexcel/Examples<br />