Is there any way to limit the dates that a file can be downloaded using the "Add a Resource > Link to a File" resource option?
What I am looking for is much like the quiz options where you have an opening and closing date and time on the quiz.... only in this case, with the downloadable file.
Not yet, but there will be in Moodle 2. That is not much of an answer I know, but if it is really important to you then you could upload your word doc and hyperlink to it in an assignment for example -an offline one maybe- and set an open/close date on that. Then students would only be able toaccess the file within the assignment at the dates you chose.