Often it is enough to find a skeleton.
The rest can be found in Umodel by switching between bindings using "Page up" and " Page down".
Or find it by opening the skeleton in the hex editor.
Usually I just check the client after each update and take screenshots.
But if I don't find something, I use the program.
Searches only in the specified folder (does not check subfolders).
And does not cope well with the current amount of upk (it is better to copy the files separately in the approximate range).
It searches for upk content.