01 Simple

22:48:31 Create new Spreadsheet object
22:48:31 Set document properties
22:48:31 Add some data
22:48:31 Rename worksheet
22:48:31 Write Excel2007 format to /tmp/phpspreadsheet/01_Simple.xlsx in 0.0042 seconds
22:48:31 Write Excel5 format to /tmp/phpspreadsheet/01_Simple.xls in 0.0184 seconds
22:48:31 Peak memory usage: 6MB