18:12:26 Enable Cell Caching using MemoryGZip method<br />18:12:26 Create new PHPExcel object<br />18:12:26 Set properties<br />18:12:26 Add data<br />18:12:26 Hide 'Phone' and 'fax' columns<br />18:12:26 Set outline levels<br />18:12:26 Freeze panes<br />18:12:26 Rows to repeat at top<br />18:12:27 Write to Excel2007 format<br />18:12:29 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 1.9478 seconds<br />18:12:29 Current memory usage: 22 MB<br />18:12:29 Peak memory usage: 26 MB<br />18:12:29 Done writing file<br />File has been created in /var/www/html/Quetzal/vendor/phpoffice/phpexcel/Examples<br />