01 Simple

19:40:39 Create new Spreadsheet object
19:40:39 Set document properties
19:40:39 Add some data
19:40:39 Rename worksheet
19:40:39 Write Excel2007 format to /tmp/phpspreadsheet/01_Simple.xlsx in 0.0028 seconds
19:40:39 Write Excel5 format to /tmp/phpspreadsheet/01_Simple.xls in 0.0041 seconds
19:40:39 Peak memory usage: 1.5MB