This file defines how to show chapter introduction text.
The default value determines the MOS reference for chapter screen.
The first column is filled by race names. Not all tables include rows for races or classes.
Later there are two columns that could be filled by strrefs from Dialog.tlk.
This file appears to be a leftover from BGEE.

In PSTEE we have (chptxt1.2da):

2DA V1.0
NONE
                        0           1
SWITCH                  DEFAULT     DEFAULT
DEFAULT                 16203       16190
DWARF                   0           0
ELF                     0           0
HALFELF                 0           0
HALFLING                0           0
GNOME                   0           0
HUMAN                   0           0
MAGE                    0           0
FIGHTER                 0           0
CLERIC                  0           0
THIEF                   0           0
BARD                    0           0
PALADIN                 0           0
FIGHTER_MAGE            0           0
FIGHTER_CLERIC          0           0
FIGHTER_THIEF           0           0
FIGHTER_MAGE_THIEF      0           0
DRUID                   0           0
RANGER                  0           0
MAGE_THIEF              0           0
CLERIC_MAGE             0           0
CLERIC_THIEF            0           0
FIGHTER_DRUID           0           0
FIGHTER_MAGE_CLERIC     0           0
CLERIC_RANGER           0           0