Below is a list of attributes and the codes that correspond to them. For example, the code for attribute 1 is A1, the code for attribute 10 is AA. You may have up to 20 attributes on file, depending on the number of attributes you specified in GATSETUP.
1 = A1
2 = A2
3 = A3
4 = A4
5 = A5
6 = A6
7 = A7
8 = A8
9 = A9
10 = AA
11 = AB
12 = AC
13 = AD
14 = AE
15 = AF
16 = AG
17 = AH
18 = AI
19 = AJ
20 = AK