21:39:02 Enable Cell Caching using MemoryGZip method<br />21:39:02 Create new PHPExcel object<br />21:39:02 Set properties<br />21:39:02 Add data<br />21:39:02 Hide 'Phone' and 'fax' columns<br />21:39:02 Set outline levels<br />21:39:02 Freeze panes<br />21:39:02 Rows to repeat at top<br />21:39:02 Write to Excel2007 format<br />21:39:04 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 1.2310 seconds<br />21:39:04 Current memory usage: 4 MB<br />21:39:04 Peak memory usage: 8 MB<br />21:39:04 Done writing file<br />File has been created in /var/www/html/advancia_ci/vendor/phpoffice/phpexcel/Examples<br />