01 Simple

15:05:46 Create new Spreadsheet object
15:05:46 Set document properties
15:05:46 Add some data
15:05:46 Rename worksheet
15:05:46 Write Xlsx format to /tmp/phpspreadsheet/01_Simple.xlsx in 0.0043 seconds
15:05:46 Write Xls format to /tmp/phpspreadsheet/01_Simple.xls in 0.0104 seconds
15:05:46 Peak memory usage: 4MB