18:10:27 Create new PHPExcel object
18:10:27 Set properties
18:10:27 Add some data
18:10:27 Set header/footer
18:10:27 Add a drawing to the header
18:10:27 Set page orientation and size
18:10:27 Rename sheet
18:10:27 Write to Excel2007 format
18:10:27 Peak memory usage: 4 MB
18:10:27 Done writing file.