21:36:28 Enable Cell Caching using SQLite3 method<br />21:36:28 Create new PHPExcel object<br />21:36:28 Set properties<br />21:36:28 Add data<br />21:36:28 Hide 'Phone' and 'fax' columns<br />21:36:28 Set outline levels<br />21:36:28 Freeze panes<br />21:36:28 Rows to repeat at top<br />21:36:31 Write to Excel2007 format<br />21:36:34 File written to 06largescale-with-cellcaching-sqlite3.xlsx<br />Call time to write Workbook was 3.4272 seconds<br />21:36:34 Current memory usage: 18.75 MB<br />21:36:34 Peak memory usage: 21.75 MB<br />21:36:34 Done writing file<br />File has been created in /alidata/www/jiandan/vendor/phpoffice/phpexcel/Examples<br />