This file details spells which cannot be included in contingencies.
The first column is a numerical identifier.
The second column lists level 1 spells which cannot be included in contingencies.
The third column lists level 2 spells which cannot be included in contingencies.
..
The tenth column lists level 9 spells which cannot be included in contingencies.
In BG2 ToB we have:

2DA V1.0
****
           1          2          3          4          5          6          7          8          9          
1          SPWI110    ****       ****       SPWI420    SPWI510    SPPR611    SPWI710    SPWI809    SPWI908    
2          SPWI123    ****       ****       ****       ****       SPWI617    ****       ****       ****       
3          SPWI124    ****       ****       ****       ****       ****       ****       ****       ****       
4          ****       ****       ****       ****       ****       ****       ****       ****       ****