22:08:45 Enable Cell Caching using MemoryGZip method<br />22:08:45 Create new PHPExcel object<br />22:08:45 Set properties<br />22:08:45 Add data<br />22:08:45 Hide 'Phone' and 'fax' columns<br />22:08:45 Set outline levels<br />22:08:45 Freeze panes<br />22:08:45 Rows to repeat at top<br />22:08:47 Write to Excel2007 format<br />22:08:51 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 3.9007 seconds<br />22:08:51 Current memory usage: 27.75 MB<br />22:08:51 Peak memory usage: 31 MB<br />22:08:51 Done writing file<br />File has been created in /var/www/html/vendor/phpoffice/phpexcel/Examples<br />