01 Simple

02:24:13 Create new Spreadsheet object
02:24:13 Set document properties
02:24:13 Add some data
02:24:13 Rename worksheet
02:24:13 Write Xlsx format to /tmp/phpspreadsheet/01_Simple.xlsx in 0.0038 seconds
02:24:13 Write Xls format to /tmp/phpspreadsheet/01_Simple.xls in 0.6826 seconds
02:24:13 Peak memory usage: 2MB