Access Excel cell value in c#

Question

Cell A1 contains value "=A2" Cell A2 contains "Microsoft".

When I access cell A1 through c# I get "Microsoft".

How to access "=A2" value of cell A1?

Microsoft.Office.Interop.Excel.Range cell //it points to address A1
object obj=cell.Value2; //Here obj contains "Microsoft" but I want "=A2" 

Answer 1

Try to use Range.Formula:

Microsoft.Office.Interop.Excel.Range cell //it points to address A1
object obj=cell.Formula;