16:38:32 Enable Cell Caching using MemoryGZip method<br />16:38:32 Create new PHPExcel object<br />16:38:32 Set properties<br />16:38:32 Add data<br />16:38:32 Hide 'Phone' and 'fax' columns<br />16:38:32 Set outline levels<br />16:38:32 Freeze panes<br />16:38:32 Rows to repeat at top<br />16:38:34 Write to Excel2007 format<br />16:38:38 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 3.8490 seconds<br />16:38:38 Current memory usage: 27 MB<br />16:38:38 Peak memory usage: 30 MB<br />16:38:38 Done writing file<br />File has been created in /alidata/www/jiandan/vendor/phpoffice/phpexcel/Examples<br />