01 Simple

12:22:01 Create new Spreadsheet object
12:22:01 Set document properties
12:22:01 Add some data
12:22:01 Rename worksheet
12:22:01 Write Xlsx format to /tmp/phpspreadsheet/01_Simple.xlsx in 0.0022 seconds
12:22:01 Write Xls format to /tmp/phpspreadsheet/01_Simple.xls in 0.0087 seconds
12:22:01 Peak memory usage: 10MB