01 Simple

20:01:03 Create new Spreadsheet object
20:01:03 Set document properties
20:01:03 Add some data
20:01:03 Rename worksheet
20:01:03 Write Excel2007 format to /tmp/phpspreadsheet/01_Simple.xlsx in 0.0027 seconds
20:01:03 Write Excel5 format to /tmp/phpspreadsheet/01_Simple.xls in 0.0066 seconds
20:01:03 Peak memory usage: 6MB