Hi Sir ,
Thank you very much for the solution . This is exactly what I was searching for . When I said "I don't think that will be wise to do as we dont know which
cells have been used in the excel sheet" , I meant , if a user suppose deletes a whole column , then we cannot know which cells are actually present by using row and column number . We need a fixed correspondence is exactly what solution you gave me .
Thanks Again Sir. Now I can advance in my work.