Copying weight painted faces from one .blend file to another So I have these two separate models, one is rigged and weight painted and another is just a copy with different bones and no weights. How can I copy the weights from the first model to the second one? 
If they both existed in the same project I could figure it out but they are in separate .blend files.

Original model


Copied model with automatic weights
You can append the correct weighted model into the wrong weighted blend file, then just rename its vertex groups accordingly to the names of the new armature's bones.