18:06:44 Create new PHPExcel object
18:06:44 Set properties
18:06:44 Add some data
18:06:44 Rename sheet
18:06:44 Set document security
18:06:44 Set sheet security
18:06:44 Write to Excel2007 format
18:06:44 Peak memory usage: 2.5 MB
18:06:44 Done writing file.