import java.io.*;
import java.awt.*;
import java.util.*;
import javax.swing.*;
import java.awt.event.*;
import javax.swing.table.*;

import jxl.Cell;
import jxl.Sheet;
import jxl.Workbook;

public class ExcelToJtable {
 public static void main(String[] args) {

  Vector headers = new Vector();
  Vector data = new   Vector();

    File file = new File("c:/data.xls");
    try {
    Workbook workbook = Workbook.getWorkbook(file);
      Sheet sheet = workbook.getSheet(0);
      headers.clear();
      for (int i = 0; i < sheet.getColumns(); i++) {
        Cell cell1 = sheet.getCell(i, 0);
        headers.add(cell1.getContents());
      }
      data.clear();
      for (int j = 1; j < sheet.getRows(); j++) {
      Vector d = new Vector();
      for (int i = 0; i < sheet.getColumns(); i++) {
      Cell cell = sheet.getCell(i, j);
          d.add(cell.getContents());
      }
      d.add("\n");
      data.add(d);
     }
    }
    catch (Exception e) {
         e.printStackTrace();
    }
    JTable table = new JTable();
    DefaultTableModel model = new DefaultTableModel(data,headers);
    int tableWidth = model.getColumnCount()* 150;
    int tableHeight = model.getRowCount()* 25;
     table.setPreferredSize(new Dimension(tableWidth, tableHeight));
     table.setModel(model);
     table.setAutoCreateRowSorter(true);
     model = new DefaultTableModel(data, headers);
     table.setModel(model);
     table.setEnabled(false);
     table.setRowHeight(25);
     table.setRowMargin(4);

     JScrollPane scroll = new JScrollPane(table);
     JFrame f=new JFrame();
     f.add(scroll);
     f.setSize(600, 600);
     f.setVisible(true);
  }
}

For the above code, you need JExcel API.

Download JExcel API

Thanks buddyyy.... can i edit the rows........... thanks in advance............