01 Simple
10:36:25 Create new Spreadsheet object
10:36:25 Set document properties
10:36:25 Add some data
10:36:25 Rename worksheet
10:36:25 Write Xlsx format to
/tmp/phpspreadsheet/01_Simple.xlsx
in 0.0039 seconds
10:36:25 Write Xls format to
/tmp/phpspreadsheet/01_Simple.xls
in 0.0039 seconds
10:36:25 Peak memory usage: 2MB