01 Simple

11:37:19 Create new Spreadsheet object
11:37:19 Set document properties
11:37:19 Add some data
11:37:19 Rename worksheet
11:37:19 Write Xlsx format to /tmp/phpspreadsheet/01_Simple.xlsx in 0.0025 seconds
11:37:19 Write Xls format to /tmp/phpspreadsheet/01_Simple.xls in 0.0018 seconds
11:37:19 Peak memory usage: 2MB