20:59:50 Create new PHPExcel object
20:59:50 Set properties
20:59:50 Add some data
20:59:51 Set header/footer
20:59:51 Add a drawing to the header
20:59:51 Set page orientation and size
20:59:51 Rename sheet
20:59:51 Write to Excel2007 format
20:59:51 Peak memory usage: 4 MB
20:59:51 Done writing file.