I'm sorry, I do not have an answer to your question. It is a new file. I suppose you could take a screenshot of the statistics and save that in your new file. You might be able to edit these in the new document in the xml; I do not know.

Realistically, these "statistics" have little meaning. Perhaps to a Microsoft tech they have meaning, but not to a general user or supervisor.

Editing time refers to the time the document was open. It includes the time the document was in the background while you played solitaire. It includes the weekend that you left the computer on with the document open and you were at home.