01 Simple

19:55:02 Create new Spreadsheet object
19:55:02 Set document properties
19:55:02 Add some data
19:55:02 Rename worksheet
19:55:02 Write Excel2007 format to /tmp/phpspreadsheet/01_Simple.xlsx in 0.0045 seconds
19:55:02 Write Excel5 format to /tmp/phpspreadsheet/01_Simple.xls in 0.0086 seconds
19:55:02 Peak memory usage: 5.25MB