18:50:28 Create new PHPExcel object
18:50:28 Set properties
18:50:28 Add some data
18:50:28 Set column widths
18:50:28 Add conditional formatting
18:50:28 Set fonts
18:50:28 Set header/footer
18:50:28 Set page orientation and size
18:50:28 Rename sheet
18:50:28 Write to Excel2007 format
18:50:28 Peak memory usage: 4 MB
18:50:28 Done writing file.