Finding a faulty data source

I am working at home using Dell SonicWall netextender to connect to our main server.
When I open the developing app I get the warning:-
"This workbook contains links to external sources" I press Continue and proceed.
At a later stage in the app I get the message :-

"We cant update some of the links right now" I press edit and I see that there is what looks like a garbled Range name from the app.
I cant find this garbled name in any of my code and it is not in the list of named ranges. I would like to find it and remove . Is there another way of discovering its whereabouts?
John

Thanks for your advice. I searched through all the worksheets and found the offending text was a garbled row heading used in an INDEX/MATCH lookup.
John