Is it possible to segment a bilingual Excel file by something other than cells?

I am using Studio 2015 to process a bilingual Excel file. I have my source in column A and the translation in column B. Each cell is a paragraph containing 2 or more sentences. When I add to Trados, my file is segmented by cell, so each of my segments in the Editor view contains the entire paragraph. I'd like to be able to segment by sentence, so that I can add sentenced based TUs to my TM. Is there a way to do this with a bilingual Excel or even a different file type?