Hi,
I have been looking around for a solution and come across your forum room. I'm hoping someone can help of point me in the right direction.
I'm current translating some UPK files for a game but having some trouble as not everything I can edit.
The UPK files are current in a .Pak file that I can access browse and extract files from.

Using this software im able to view the database inside of the upk file but I'm unable to edit them. when i try to edit the displayed mob names i get this error.
https://ibb.co/gyMHhv8 
. I no this error is not right as its a fully working client and im only changing the display name not a object number.
Is there other software i can use to view this file as a database and not hex?
Mir3d client editor im using:
https://github.com/mir-ethernity/mir-eternal/tree/main/Mir3DEditor/Mir3DClientEditorPak file im editing:
https://wetransfer.com/downloads/ff9cbe32873ea06e54da9646cd04f20120230516154244/e9aa6d368a7fca41fbdd45512d0b7c7220230516154416/0666d8?trk=TRN_TDL_01&utm_campaign=TRN_TDL_01&utm_medium=email&utm_source=sendgrid