07:11:02 Enable Cell Caching using MemoryGZip method<br />07:11:02 Create new PHPExcel object<br />07:11:02 Set properties<br />07:11:02 Add data<br />07:11:02 Hide 'Phone' and 'fax' columns<br />07:11:02 Set outline levels<br />07:11:02 Freeze panes<br />07:11:02 Rows to repeat at top<br />07:11:03 Write to Excel2007 format<br />07:11:07 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 3.7670 seconds<br />07:11:07 Current memory usage: 27.75 MB<br />07:11:07 Peak memory usage: 31 MB<br />07:11:07 Done writing file<br />File has been created in /var/www/html/vendor/phpoffice/phpexcel/Examples<br />