Fitnesse :- Can we do data validation on fields/grids upon excel upload using fitnesse ?

Hi All,

I'm in need of some specific guidance in terms of FitNesse. The following are scenarios :-

User will upload excel sheet and data from that excel sheet will get populated in the grids/field . Also,there will be lot of hand and soft validations say mandatory fields and calculations(sum of two field value should be populated in third field) . Can we achieve this using fitnesse?