no way to - the only thing you can do is change the formating in your excel files that reside in the templates folder
but watch out you can not change cell or column order or the way MV displays, or the order of items
SO BACK up these before you edit them-
the best method is to make scrap Job and edit the excel documents located under that Jobs name directory - when you process the job
the new Excel doc will be the basis for the new complied excel reports.