12:12:43 Enable Cell Caching using MemoryGZip method<br />12:12:43 Create new PHPExcel object<br />12:12:43 Set properties<br />12:12:43 Add data<br />12:12:43 Hide 'Phone' and 'fax' columns<br />12:12:43 Set outline levels<br />12:12:43 Freeze panes<br />12:12:43 Rows to repeat at top<br />12:12:43 Write to Excel2007 format<br />12:12:45 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 1.9141 seconds<br />12:12:45 Current memory usage: 20 MB<br />12:12:45 Peak memory usage: 24 MB<br />12:12:45 Done writing file<br />File has been created in /var/www/html/Quetzal/vendor/phpoffice/phpexcel/Examples<br />