18:12:29 Enable Cell Caching using MemoryGZip method<br />18:12:29 Create new PHPExcel object<br />18:12:29 Set properties<br />18:12:29 Add data<br />18:12:29 Hide 'Phone' and 'fax' columns<br />18:12:29 Set outline levels<br />18:12:29 Freeze panes<br />18:12:29 Rows to repeat at top<br />18:12:30 Write to Excel2007 format<br />18:12:32 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 1.9694 seconds<br />18:12:32 Current memory usage: 14 MB<br />18:12:32 Peak memory usage: 18 MB<br />18:12:32 Done writing file<br />File has been created in /var/www/html/SFL/vendor/phpoffice/phpexcel/Examples<br />