This file defines strength influence on characters abilities like allowable weight that could be taken by character or to hit bonus.
The first row (titles of columns ) is filled by the names of features affecting of PC (like TO_HIT = to hit bonus ).
The first column is filled by value of strength of character.
The rest columns are filled by values for given strength - pretty obvious from names I suppose.

In PSTEE we have:

2DA V1.0
0
    TO_HIT  DAMAGE  BEND_BARS_LIFT_GATES    WEIGHT_ALLOWANCE
0   -20     -20     0                       0
1   -5      -4      1                       1
2   -3      -2      2                       3
3   -3      -1      3                       5
4   -2      -1      4                       15
5   -2      -1      5                       15
6   -1      0       6                       30
7   -1      0       7                       30
8   0       0       8                       50
9   0       0       9                       50
10  0       0       10                      70
11  0       0       11                      70
12  0       0       12                      90
13  0       0       13                      90
14  0       0       14                      120
15  0       0       15                      120
16  0       1       16                      150
17  1       1       18                      170
18  1       2       20                      200
19  3       7       50                      500
20  3       8       55                      600
21  4       9       60                      700
22  4       10      65                      800
23  5       11      70                      1000
24  6       12      75                      1200
25  7       14      80                      1600