23:35:39 Create new PHPExcel object
23:35:39 Set properties
23:35:39 Add some data
23:35:39 Set column widths
23:35:39 Add conditional formatting
23:35:39 Set fonts
23:35:39 Set header/footer
23:35:39 Set page orientation and size
23:35:39 Rename sheet
23:35:39 Write to Excel2007 format
23:35:39 Peak memory usage: 4 MB
23:35:39 Done writing file.