01 Simple

11:52:15 Create new Spreadsheet object
11:52:15 Set document properties
11:52:15 Add some data
11:52:15 Rename worksheet
11:52:15 Write Excel2007 format to /tmp/phpspreadsheet/01_Simple.xlsx in 0.0037 seconds
11:52:15 Write Excel5 format to /tmp/phpspreadsheet/01_Simple.xls in 0.0088 seconds
11:52:15 Peak memory usage: 6MB