11:40:57 Enable Cell Caching using MemoryGZip method<br />11:40:57 Create new PHPExcel object<br />11:40:57 Set properties<br />11:40:57 Add data<br />11:40:57 Hide 'Phone' and 'fax' columns<br />11:40:57 Set outline levels<br />11:40:57 Freeze panes<br />11:40:57 Rows to repeat at top<br />11:40:58 Write to Excel2007 format<br />11:41:00 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 2.0697 seconds<br />11:41:00 Current memory usage: 18 MB<br />11:41:00 Peak memory usage: 24 MB<br />11:41:00 Done writing file<br />File has been created in /var/www/html/vendor/phpoffice/phpexcel/Examples<br />