Adding weapons cannot use the Blessing Enhancement Scroll

The client version is 286. I added weapons in the classic version. Found that the Blessing Enhancement Scroll cannot be used. May I ask which DAT this is? It hasn't been added yet
Thanks Waiting for kind-hearted people to answer the confusion
Another question is whether there is a detailed introduction to the role of DAT files in the login tool and some pointing associations as the client version continues to update