23:02:26 Enable Cell Caching using MemoryGZip method<br />23:02:26 Create new PHPExcel object<br />23:02:26 Set properties<br />23:02:26 Add data<br />23:02:26 Hide 'Phone' and 'fax' columns<br />23:02:26 Set outline levels<br />23:02:26 Freeze panes<br />23:02:26 Rows to repeat at top<br />23:02:26 Write to Excel2007 format<br />23:02:28 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 1.6140 seconds<br />23:02:28 Current memory usage: 20 MB<br />23:02:28 Peak memory usage: 24 MB<br />23:02:28 Done writing file<br />File has been created in /var/www/customs_rongma/vendor/phpoffice/phpexcel/Examples<br />