Question: how to copy data from one excel to another in c#?
Answer: what do you mean by specific range? – ... 
Excel.Range from = workSheet.get_Range("A1","A100"); Excel.Range to = newWorksheet.get_Range("A1","A100"); from.Copy(to); this is coping the specific range , – Sagar Trivedi Apr 7 '16 at 7:01.