18:05:42 Enable Cell Caching using MemoryGZip method<br />18:05:42 Create new PHPExcel object<br />18:05:42 Set properties<br />18:05:42 Add data<br />18:05:42 Hide 'Phone' and 'fax' columns<br />18:05:42 Set outline levels<br />18:05:42 Freeze panes<br />18:05:42 Rows to repeat at top<br />18:05:44 Write to Excel2007 format<br />18:05:47 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 2.8301 seconds<br />18:05:47 Current memory usage: 26.75 MB<br />18:05:47 Peak memory usage: 30 MB<br />18:05:47 Done writing file<br />File has been created in /alidata/www/jiandance/vendor/phpoffice/phpexcel/Examples<br />