Form File Transfer

I don't even know if this is the right venue for this question, but here goes.
This is what I need to do:
I want people to be able to use a form to submit a file to the server, (Typically a Microsoft Office document of some sort) and then when they so desire be able to click a button to compile all the documents in a given location into one "summary" document. I am thinking this could possibly be achieved with a word master document, but I don't know how that would work, and worse I don't know how people can submit files like I want them to. Any help in either answering this question or pointing me to the proper forum to do so is greatly appreciated.
Thank you,
jamie weed