01 Simple

15:50:55 Create new Spreadsheet object
15:50:55 Set document properties
15:50:55 Add some data
15:50:55 Rename worksheet
15:50:55 Write Excel2007 format to /tmp/phpspreadsheet/01_Simple.xlsx in 0.0036 seconds
15:50:55 Write Excel5 format to /tmp/phpspreadsheet/01_Simple.xls in 0.0090 seconds
15:50:55 Peak memory usage: 6MB