18:04:43 Enable Cell Caching using MemoryGZip method<br />18:04:43 Create new PHPExcel object<br />18:04:43 Set properties<br />18:04:43 Add data<br />18:04:43 Hide 'Phone' and 'fax' columns<br />18:04:43 Set outline levels<br />18:04:43 Freeze panes<br />18:04:43 Rows to repeat at top<br />18:04:43 Write to Excel2007 format<br />18:04:45 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 1.4213 seconds<br />18:04:45 Current memory usage: 28 MB<br />18:04:45 Peak memory usage: 31 MB<br />18:04:45 Done writing file<br />File has been created in /var/www/dolphin/vendor/phpoffice/phpexcel/Examples<br />