OnDoc/Excel_Test/Form1.cs

using System;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using CSVNET;
using FastExcel;

namespace Excel_Test
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            var settings = new CSVSettings()
            {
                FieldDelimiter = ';',
                TextQualifier = '\'',
                ForceQualifiers = true
            };
            DataTable dt = CSVDataTable.FromFile(@"x:\exceldata.csv",settings);
            //MessageBox.Show("A");


            var inputFile = new FileInfo(@"X:\EXCELTESTDATA.xlsx");
            FastExcel.FastExcel fast = new FastExcel.FastExcel(inputFile, true);
            Worksheet worksheet0 = fast.Read(1);
            enuToDatatable(worksheet0);
            FastExcel.Worksheet  ws = new FastExcel.Worksheet();
            CellRange cs = new CellRange("8", "53",53,8);
            FastExcel.Cell c;
            //c= (Cell)Worksheet0.GetCellsInRange(cs);
            


        }
        public static void enuToDatatable(Worksheet worksheet)
        {
            IEnumerator enumerator = worksheet.Rows.GetEnumerator();

            int count = 0;

            while (enumerator.MoveNext())
            {
                if (count > 0)
                {
                    Row row = (Row)enumerator.Current;

                    IEnumerator enumerator1 = row.Cells.GetEnumerator();

                    

                    int i = 0;

                    while (enumerator1.MoveNext())
                    {
                        Cell cell = (Cell)enumerator1.Current;
                        dt[i] = int.Parse(cell.Value.ToString());
                        i = i + 1;
                    }

                   
                }

                count += 1;
            }
        }
    }
}