18:06:44 Create new PHPExcel object
18:06:44 Set properties
18:06:44 Add some data
18:06:44 Set column widths
18:06:44 Add conditional formatting
18:06:44 Set fonts
18:06:44 Set header/footer
18:06:44 Set page orientation and size
18:06:44 Rename sheet
18:06:44 Write to Excel2007 format
18:06:44 Peak memory usage: 2.75 MB
18:06:44 Done writing file.