01 Simple

16:11:21 Create new Spreadsheet object
16:11:21 Set document properties
16:11:21 Add some data
16:11:21 Rename worksheet
16:11:21 Write Excel2007 format to /tmp/phpspreadsheet/01_Simple.xlsx in 0.0042 seconds
16:11:21 Write Excel5 format to /tmp/phpspreadsheet/01_Simple.xls in 0.0082 seconds
16:11:21 Peak memory usage: 5.25MB