15:40:22 Enable Cell Caching using MemoryGZip method<br />15:40:22 Create new PHPExcel object<br />15:40:22 Set properties<br />15:40:22 Add data<br />15:40:22 Hide 'Phone' and 'fax' columns<br />15:40:22 Set outline levels<br />15:40:22 Freeze panes<br />15:40:22 Rows to repeat at top<br />15:40:23 Write to Excel2007 format<br />15:40:24 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 1.8670 seconds<br />15:40:24 Current memory usage: 20 MB<br />15:40:24 Peak memory usage: 26 MB<br />15:40:24 Done writing file<br />File has been created in /var/www/billing.andrewpeng.net/vendor/turbo124/phpexcel/Examples<br />