File formatting

Comma separated values (CSV) file:

Example 

ID Number,Marks

8781,33

8727,32

8534,18

2504,22

8759,29

8753,35

8815,25

8811,28

8716,26

Excel spreadsheet (XLS) file:

Example 

 

A

B

1

ID Number

Marks

2

8781

33

3

8727

32

4

8534

18

5

2504

22

6

8759

29

7

8753

35

8

8815

25

9

8811

28

10

8716

26