This file defines the number of spells at each magic level a sorcerer knows at each level.
The first column lists the sorcerer level.
Subsequent columns list the spell levels.
In BG2EE we have:

2DA V1.0
0
        1   2   3   4   5   6   7   8   9
1       2   0   0   0   0   0   0   0   0
2       2   0   0   0   0   0   0   0   0
3       3   0   0   0   0   0   0   0   0
4       3   1   0   0   0   0   0   0   0
5       4   2   0   0   0   0   0   0   0
6       4   2   1   0   0   0   0   0   0
7       5   3   2   0   0   0   0   0   0
8       5   3   2   1   0   0   0   0   0
9       5   4   3   2   0   0   0   0   0
10      5   4   3   2   1   0   0   0   0
11      5   5   4   3   2   0   0   0   0
12      5   5   4   3   2   1   0   0   0
13      5   5   4   4   3   2   0   0   0
14      5   5   4   4   3   2   1   0   0
15      5   5   4   4   4   3   2   0   0
16      5   5   4   4   4   3   2   1   0
17      5   5   4   4   4   3   3   2   0
18      5   5   4   4   4   3   3   2   1
19      5   5   4   4   4   3   3   3   2
20      5   5   4   4   4   3   3   3   3
21      5   5   4   4   4   4   3   3   3
22      5   5   5   4   4   4   4   3   3
23      5   5   5   5   4   4   4   4   3
24      5   5   5   5   4   4   4   4   3
25      5   5   5   5   4   4   4   4   4
26      5   5   5   5   4   4   4   4   4
27      5   5   5   5   4   4   4   4   4
28      5   5   5   5   5   4   4   4   4
29      5   5   5   5   5   4   4   4   4
30      5   5   5   5   5   5   4   4   4
31      5   5   5   5   5   5   5   4   4
32      5   5   5   5   5   5   5   5   4
33      5   5   5   5   5   5   5   5   4
34      5   5   5   5   5   5   5   5   4
35      5   5   5   5   5   5   5   5   4
36      5   5   5   5   5   5   5   5   5
37      5   5   5   5   5   5   5   5   5
38      5   5   5   5   5   5   5   5   5
39      5   5   5   5   5   5   5   5   5
40      5   5   5   5   5   5   5   5   5