KiriKiri .dat archive problem

[subaru471171]

I am translating purely x cation ( https://vndb.org/v18723 ) but the archive is in .dat format. i am able to extract the scenario scripts using krkrextract but how do i make a patch file of .dat format. i patch a .xp3 patch its not working. also tried to rename it to patch.dat still not working. i also tried to completely unpack and repack to main.xp3 and renamed it to main.dat and still not working . what to do

[asdf_8141]

use https://github.com/arcusmaximus/KirikiriTools
make patch folder in the same DIR as game.exe
put "ONLY THE FILES THAT MODIFIED" in the patch folder 
use xp3pack to generate patch.xp3
open game.exe
If you have any problem feel free to ask.