Binding Excel Data in Gridview

Hi,
Some times we have data in exel format so this code is useful to bind excel data in gridview then we can do maupulations in excel data.

public void bind()
        {
            string cnstr = "Provider=Microsoft.Jet.Oledb.4.0;Data Source=C:\\Book2.xls;" + "Extended Properties=Excel 8.0";
            OleDbConnection oledbConn = new OleDbConnection(cnstr);
            string strSQL = "SELECT * FROM [Sheet1$]";
            OleDbCommand cmd = new OleDbCommand(strSQL, oledbConn);
            DataSet ds = new DataSet(); 
            OleDbDataAdapter da = new OleDbDataAdapter(cmd);
            da.Fill(ds); 
            GridView1.DataSource = ds;
            GridView1.DataBind();
        }