I am not clear about what you're asking. if you could include a screenshot of an example sheet (make sure it doesn't include any real info) that might help.
cells are identified by their header name (the value of that column in row 1). so if you have columns like Name, Phone, Email, you would put "#Email#" in the "To:"
setting in FormEmailer.
if the Email column has multiple addresses, this should work. if you have multiple email columns, you should be able to put them in the To: field with commas. #Email1#,#Email2#,etc
-wes