How to read a excel file in c#?

Question

I have a excel file.I want to read the file using c#.

Excel file contains following.

Name          subject             Marks
A              maths               35
B              maths               50
C              maths               69
------------Empty row-----------------
D              maths               36

 I am using Interop to read the Excel file .

i want my o/p like below. 

Name          subject             Marks
A              maths               35
B              maths               50
C              maths               69
D              maths               36

 What i did:

 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Excel = Microsoft.Office.Interop.Excel;
namespace excel
{
class Program
{
static void Main(string[] args)
{
Excel.Application xlApp = new Excel.Application();
Excel.Workbook xlWorkbook = xlApp.Workbooks.Open(@"C:\dinesh\Sample.xlsx");
Excel.Worksheet xlWorksheet = xlWorkbook.Sheets[1]; // assume it is the first sheet
Excel.Range xlRange = xlWorksheet.UsedRange;


xlWorkbook.Worksheets.Add(xlWorksheet);

}
}
}