18:02:59 Enable Cell Caching using MemoryGZip method<br />18:02:59 Create new PHPExcel object<br />18:02:59 Set properties<br />18:02:59 Add data<br />18:02:59 Hide 'Phone' and 'fax' columns<br />18:02:59 Set outline levels<br />18:02:59 Freeze panes<br />18:02:59 Rows to repeat at top<br />18:03:00 Write to Excel2007 format<br />18:03:01 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 1.4869 seconds<br />18:03:01 Current memory usage: 18 MB<br />18:03:01 Peak memory usage: 22 MB<br />18:03:01 Done writing file<br />File has been created in /var/www/customs_rongma/vendor/phpoffice/phpexcel/Examples<br />