15:19:44 Create new PHPExcel object<br />15:19:44 Set document properties<br />15:19:44 Add some data<br />15:19:44 Rename worksheet<br />15:19:44 Set document security<br />15:19:44 Set sheet security<br />15:19:44 Write to Excel2007 format<br />15:19:44 File written to 11documentsecurity.xlsx<br />Call time to write Workbook was 0.0312 seconds<br />15:19:44 Current memory usage: 5.75 MB<br />15:19:44 Peak memory usage: 5.75 MB<br />15:19:44 Done writing file<br />File has been created in D:\wwwroot\yx\base_admin_welcome_new_student\vendor\phpoffice\phpexcel\Examples<br />