19:45:16 Enable Cell Caching using MemoryGZip method<br />19:45:16 Create new PHPExcel object<br />19:45:16 Set properties<br />19:45:16 Add data<br />19:45:16 Hide 'Phone' and 'fax' columns<br />19:45:16 Set outline levels<br />19:45:16 Freeze panes<br />19:45:16 Rows to repeat at top<br />19:45:18 Write to Excel2007 format<br />19:45:21 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 2.9136 seconds<br />19:45:21 Current memory usage: 24.5 MB<br />19:45:21 Peak memory usage: 27.25 MB<br />19:45:21 Done writing file<br />File has been created in /var/www/html/vendor/phpoffice/phpexcel/Examples<br />