How to change all in-text citations to footnotes

I wrote a phd thesis by using EndNote for in-text citations and, after I submitted the text, they decided to change the requirement concerning the format of the citations.

I now have to convert all in-text citations to footnotes. The footnotes have to contain the full bibliographical reference; i.e., the one that is included also at the end of the file within the bibliography.

I would ideally like a macro that could automate this conversion task over all references contained in a word file. Does anybody know how to do that?

Thanks in advance!