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Error when running ASP.NET program to READ Excel file. Please help !!!

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I've tried this program from a sample posted on-line to open an Excel file,
read data and display on the Grid View. I'm using Visual Studio 2005 to
save this file. The program compiled OK. When I ran this file from Visual
Studio, I've got an alert message with this error message :

OLEDBException was unhandled by user code
Could not find installable ISAM

Troubleshooting tips:
Get general help for this exception

The error pointed to this line : objConn.Open();

The excel file is in the same location C:\VS2005_DEV with the aspx.cs file.

Please help me to define this problem.

Thanks in advance.

================================================== =

using System;

using System.Data;

using System.Data.OleDb;

using System.Configuration;

using System.Collections;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

public partial class ReadExcel : System.Web.UI.Page


protected void Page_Load(object sender, EventArgs e)


String sConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;" +

"DataSource=" + Server.MapPath("VS2005_DEV\\ExcelData.xls") +

"Extended Properties=Excel 8.0;";

// Create connection object by using the preceding connection string.

OleDbConnection objConn = new OleDbConnection(sConnectionString);

// Open connection with the database.


// The code to follow uses a SQL SELECT command to display the data from the

// Create new OleDbCommand to return data from worksheet.

OleDbCommand objCmdSelect =new OleDbCommand("SELECT * FROM myRange1",

// Create new OleDbDataAdapter that is used to build a DataSet

// based on the preceding SQL SELECT statement.

OleDbDataAdapter objAdapter1 = new OleDbDataAdapter();

// Pass the Select command to the adapter.

objAdapter1.SelectCommand = objCmdSelect;

// Create new DataSet to hold information from the worksheet.

DataSet objDataset1 = new DataSet();

// Fill the DataSet with the information from the worksheet.

objAdapter1.Fill(objDataset1, "XLData");

// Bind data to DataGrid control.

GridView1.DataSource = objDataset1.Tables[0].DefaultView;


// Clean up objects.




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