13:02:16 Enable Cell Caching using MemoryGZip method<br />13:02:16 Create new PHPExcel object<br />13:02:16 Set properties<br />13:02:16 Add data<br />13:02:16 Hide 'Phone' and 'fax' columns<br />13:02:16 Set outline levels<br />13:02:16 Freeze panes<br />13:02:16 Rows to repeat at top<br />13:02:16 Write to Excel2007 format<br />13:02:17 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 0.9302 seconds<br />13:02:17 Current memory usage: 22 MB<br />13:02:17 Peak memory usage: 26 MB<br />13:02:17 Done writing file<br />File has been created in /var/www/html/examcontroller-web/vendor/phpoffice/phpexcel/Examples<br />