22:03:40 Create new PHPExcel object
22:03:40 Set properties
22:03:40 Add some data
22:03:40 Set column widths
22:03:40 Add conditional formatting
22:03:40 Set fonts
22:03:40 Set header/footer
22:03:40 Set page orientation and size
22:03:40 Rename sheet
22:03:40 Write to Excel2007 format
22:03:40 Peak memory usage: 5 MB
22:03:40 Done writing file.