Display data in GridView from Excel Sheet

OleDbConnection DBConnection = new
OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=...;" + "Extended
Properties=\"Excel 8.0;HDR=Yes\"");
DBConnection.Open();
string SQLString = "SELECT * FROM [Sheet1$]";
OleDbCommand DBCommand = new OleDbCommand(SQLString, DBConnection);
IDataReader DBReader = DBCommand.ExecuteReader();
GridView1.DataSource = DBReader;
GridView1.DataBind();
DBReader.Close();
DBConnection.Close();