Read data from excel into the object of DataSet.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Excel;
using System.IO;
using System.Data;

namespace ReadExcelData
{
    class Program
    {
        static void Main(string[] args)
        {
            string filePath = @"E:\WorkDocuments\TestD\Book1.xlsx";
            ReadDataFromExcel(filePath);
        }

        public static void ReadDataFromExcel(string filePath)
        {
            FileStream stream = new FileStream(filePath, FileMode.Open);

            IExcelDataReader excelReader2007 = ExcelReaderFactory.CreateOpenXmlReader(stream);

            DataSet result = excelReader2007.AsDataSet();

            // Data Reader methods
            foreach (DataTable table in result.Tables)
            {
                for (int i = 0; i < table.Rows.Count; i++ )
                {
                    for (int j = 0; j < table.Columns.Count; j++ )
                    {
                        Console.Write("\"" + table.Rows[i].ItemArray[j] + "\";");
                        
                    }
                    Console.WriteLine();
                }
            }
            excelReader2007.Close();
            Console.Read();

        }
    }
}