changing the attack and deefense value of a unit?

[rageallday]

how can i do this?

[The Count(er)]

you need to open export_descr_unit.txt in there is all the info you need
the blue is the attack and the red added together is the defense

type             Dismounted Feudal Knights
dictionary       Dismounted_Feudal_Knights      ; Dismounted Feudal Knights
category         infantry
class            heavy
voice_type       Heavy
banner faction   main_infantry
banner holy      crusade
soldier          Dismounted_Feudal_Knights, 48, 0, 1.2
attributes       sea_faring, hide_forest, hardy, can_withdraw, free_upkeep_unit
formation        1.2, 0, 2.4, 2.4, 3, square
stat_health      1, 0
stat_pri         6, 4, no, 0, 0, melee, melee_blade, piercing, sword, 0, 1
stat_pri_attr    no
stat_sec         0, 0, no, 0, 0, no, melee_simple, blunt, none, 0, 1
stat_sec_attr    no
stat_pri_armour  7, 6, 6, metal
stat_sec_armour  0, 0, flesh
stat_heat        7
stat_ground      1, -1, 2, 1
stat_mental      13, normal, trained
stat_charge_dist 10
stat_fire_delay  0
stat_food        60, 300
stat_cost        1, 620, 280, 90, 70, 620, 4, 140
armour_ug_levels 3, 4
armour_ug_models Dismounted_Feudal_Knights, Dismounted_Feudal_Knights_ug1
ownership        england, aragon, norway, scotland, france, hre, denmark, spain, portugal, milan, venice, papal_states, hungary
era 0            england, aragon, norway, france, hre, denmark, spain, portugal, milan, venice, papal_states, hungary
era 1            scotland
recruit_priority_offset    25