19:12:44 Create new PHPExcel object
19:12:44 Set properties
19:12:44 Add some data
19:12:44 Set header/footer
19:12:44 Add a drawing to the header
19:12:44 Set page orientation and size
19:12:44 Rename sheet
19:12:44 Write to Excel2007 format
19:12:44 Peak memory usage: 4 MB
19:12:44 Done writing file.