15:03:28 Create new PHPExcel object
15:03:28 Set properties
15:03:28 Add some data
15:03:28 Set column widths
15:03:28 Add conditional formatting
15:03:28 Set fonts
15:03:28 Set header/footer
15:03:28 Set page orientation and size
15:03:28 Rename sheet
15:03:28 Write to Excel2007 format
15:03:29 Peak memory usage: 2.75 MB
15:03:29 Done writing file.