I tried to make am excel sheet with a 3 x 3 Grid where If I put an integer in the cell " A1 ", for eg. 7, then the grid
i.e. B1,C1,D1 & B2,C2,D2 & B3,C3,D3 will be filled in such a way that all the rows & colmuns in the grid will sum exactly as
the number in the cell " A1 "...