17:11:51 Enable Cell Caching using MemoryGZip method<br />17:11:51 Create new PHPExcel object<br />17:11:51 Set properties<br />17:11:51 Add data<br />17:11:51 Hide 'Phone' and 'fax' columns<br />17:11:51 Set outline levels<br />17:11:51 Freeze panes<br />17:11:51 Rows to repeat at top<br />17:11:52 Write to Excel2007 format<br />17:11:54 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 2.0380 seconds<br />17:11:54 Current memory usage: 23.5 MB<br />17:11:54 Peak memory usage: 26.75 MB<br />17:11:54 Done writing file<br />File has been created in /var/www/html/national-parameters/vendor/phpoffice/phpexcel/Examples<br />