Yeah, I do understand what you're saying (now), but I'm struggling for a best method.
What I like the look of is ... a "template" doc (not an actual template) with the table in, and a bookmark defined for the table.
Then you can use Insert > File, and specify the bookmark (say "Table") as the range to insert. That way, the source doc needn't be opened at any time.
That translates as a fairly simple Word macro:
Sub test()
Selection.InsertFile FileName:="test.doc", Range:="table", _
ConfirmConversions:=False, Link:=False, Attachment:=False
End Sub
although, you might need to define the path to test.doc if its directory doesn't match your current doc.
Let me test it some more.