01 Simple

05:50:06 Create new Spreadsheet object
05:50:06 Set document properties
05:50:06 Add some data
05:50:06 Rename worksheet
05:50:06 Write Excel2007 format to /tmp/phpspreadsheet/01_Simple.xlsx in 0.0032 seconds
05:50:07 Write Excel5 format to /tmp/phpspreadsheet/01_Simple.xls in 0.1174 seconds
05:50:07 Peak memory usage: 1.5MB