Hi was wondering through internet for my solution. considering my excel sheet as array i want to get data based on row and column index, how can i do this. i am not getting a clue to implement this my excel sheet look like below

please help in this. i am getting mad of trying different methods.
my requirement is if i give R3,C2 in console ,i should get 4 as my answer.
i was using Excel.interop for getting this,you can suggest solution by other methods too.
thanking you in anticipation.
i got answer.. after struggling two days