21:53:15 Enable Cell Caching using MemoryGZip method<br />21:53:15 Create new PHPExcel object<br />21:53:15 Set properties<br />21:53:15 Add data<br />21:53:15 Hide 'Phone' and 'fax' columns<br />21:53:15 Set outline levels<br />21:53:15 Freeze panes<br />21:53:15 Rows to repeat at top<br />21:53:16 Write to Excel2007 format<br />21:53:18 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 2.0090 seconds<br />21:53:18 Current memory usage: 18 MB<br />21:53:18 Peak memory usage: 24 MB<br />21:53:18 Done writing file<br />File has been created in /var/www/html/vendor/phpoffice/phpexcel/Examples<br />