01 Simple

22:10:46 Create new Spreadsheet object
22:10:46 Set document properties
22:10:46 Add some data
22:10:46 Rename worksheet
22:10:46 Write Xlsx format to /tmp/phpspreadsheet/01_Simple.xlsx in 0.0063 seconds
22:10:46 Write Xls format to /tmp/phpspreadsheet/01_Simple.xls in 0.0138 seconds
22:10:46 Peak memory usage: 4MB