19:09:08 Enable Cell Caching using MemoryGZip method<br />19:09:08 Create new PHPExcel object<br />19:09:08 Set properties<br />19:09:08 Add data<br />19:09:08 Hide 'Phone' and 'fax' columns<br />19:09:08 Set outline levels<br />19:09:08 Freeze panes<br />19:09:08 Rows to repeat at top<br />19:09:10 Write to Excel2007 format<br />19:09:12 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 2.1407 seconds<br />19:09:12 Current memory usage: 24.25 MB<br />19:09:12 Peak memory usage: 27 MB<br />19:09:12 Done writing file<br />File has been created in /var/www/polr/vendor/phpoffice/phpexcel/Examples<br />