Student data as read from the data file:

Student data in the same order as in the data file:

Last
Name
[0]
First
Name
[1]
ID
Number
[2]

Student data sorted by the first names in array column 1:

Last
Name
[0]
First
Name
[1]
ID
Number
[2]

Student data sorted by the ID numbers in array column 2:

Last
Name
[0]
First
Name
[1]
ID
Number
[2]