13:11:29 Create new PHPExcel object
13:11:29 Set document properties
13:11:29 Add some data
13:11:29 Sum of Range #1 is 23
13:11:29 Sum of Range #2 is 33
13:11:29 Sum of both Ranges is 56
13:11:29 Minimum value in either Range is 3
13:11:29 Maximum value in either Range is 17
13:11:29 Average value of both Ranges is 9.333333333333334
13:11:29 Rename worksheet
13:11:29 Write to Excel2007 format
13:11:29 File written to /var/www/html/Classes/Tests/03formulas.xlsx
13:11:29 Peak memory usage: 2 MB
13:11:29 Done writing file