01 Simple

22:04:28 Create new Spreadsheet object
22:04:28 Set document properties
22:04:28 Add some data
22:04:28 Rename worksheet
22:04:28 Write Xlsx format to /tmp/phpspreadsheet/01_Simple.xlsx in 0.0027 seconds
22:04:28 Write Xls format to /tmp/phpspreadsheet/01_Simple.xls in 0.0011 seconds
22:04:28 Peak memory usage: 2MB