G3 backup for Macbook User files

[Allar]

First, I have the Macbook and g3 cloned elsewhere on an external drive. There is no risk to me if anything happens to either of these macs as a result of me just tinkering.

That said, if I have files on the g3 (from the macbook user folder) that I might want to replace on the macbook, like documents, itunes music files, photos... would I be able to drag them over to the macbook and simply replace those files on the macbook or add files from the g3 macbook partition to the macbook if I wanted.

On the g3 I am specifically using a partition that is entirely the user folder of the macbook. Might have an older Excel document on the g3 that I would want to substitute for the same named file on the macbook that is a newer file.