11:00:47 Enable Cell Caching using MemoryGZip method<br />11:00:47 Create new PHPExcel object<br />11:00:47 Set properties<br />11:00:47 Add data<br />11:00:47 Hide 'Phone' and 'fax' columns<br />11:00:47 Set outline levels<br />11:00:47 Freeze panes<br />11:00:47 Rows to repeat at top<br />11:00:50 Write to Excel2007 format<br />11:00:57 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 6.6141 seconds<br />11:00:57 Current memory usage: 23.5 MB<br />11:00:57 Peak memory usage: 26.75 MB<br />11:00:57 Done writing file<br />File has been created in /var/www/html/vendor/phpoffice/phpexcel/Examples<br />