need help to modify c5 dat files

[Xeruvem]

I've really searched a lot for a guide on enc\decoding , enc\decrypting c5 dat files. Well i found nothing referred to c5 client. I beg someone to post a short newbie guide about modding c5 dat files ! (I use hero's rev.191 system client)
My thanks in advance!

ps: already have l2encdec and l2 file edit for c5...dont know how it works
ps2:I've search a lot... i need a guide not the progs. ty for ur time

[MentaL]

[Eve RaveN]

Man use L2 File Edit. How to find do you ask ? ==GO==GO==GO==> SEARCH button