01 Simple

13:42:03 Create new Spreadsheet object
13:42:03 Set document properties
13:42:03 Add some data
13:42:03 Rename worksheet
13:42:03 Write Xlsx format to /tmp/phpspreadsheet/01_Simple.xlsx in 0.0051 seconds
13:42:03 Write Xls format to /tmp/phpspreadsheet/01_Simple.xls in 0.0145 seconds
13:42:03 Peak memory usage: 8MB