21:37:35 Enable Cell Caching using MemoryGZip method<br />21:37:35 Create new PHPExcel object<br />21:37:35 Set properties<br />21:37:35 Add data<br />21:37:35 Hide 'Phone' and 'fax' columns<br />21:37:35 Set outline levels<br />21:37:35 Freeze panes<br />21:37:35 Rows to repeat at top<br />21:37:38 Write to Excel2007 format<br />21:37:44 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 5.7653 seconds<br />21:37:44 Current memory usage: 27 MB<br />21:37:44 Peak memory usage: 30 MB<br />21:37:44 Done writing file<br />File has been created in /alidata/www/jiandan/vendor/phpoffice/phpexcel/Examples<br />