Export data in excel shld yoeet through VB

When i first figured out how to pull data from SQL and put the results in an excel file i referenced these two articles....
Reading and writing excel file using VB.NET (http://www.codeproject.com/KB/vb/Work_with_Excel__VBNET_.aspx)
Get the Values From DataBase and Stored into excell Sheet (http://www.codeproject.com/KB/vb/Getvaluesfromdatabase.aspx)

This is the code i ended up using.... (check out those links to see how you need to import the ms office excel reference file with visual basic)

Const stcon As String = "Provider=SQLNCLI;server=xxxxx;database=xxxxx;uid=xxxxx;pwd=xxxxx;DataTypeCompatibility=80"
Dim stSQL As String = "select * from scs_rate_class_money where irate_book = 124 and snew_used = 'U' and sclass = '2' and splan = 'T4' and sopt_code = 'F1'"
Dim cnt As New ADODB.Connection
Dim rst As New ADODB.Recordset
Dim fld As ADODB.Field
'Open the connection.
cnt.Open(stcon)

'Open the recordset.
With rst
.CursorLocation = ADODB.CursorLocationEnum.adUseClient
.Open(stSQL, cnt, ADODB.CursorTypeEnum.adOpenForwardOnly, _
ADODB.LockTypeEnum.adLockReadOnly , _
ADODB.CommandTypeEnum.adCmdText)
.ActiveConnection = Nothing 'Disconnect the Recordset.
End With
'Close the connection
cnt.Close ()
Dim exp As Export = New Export()
Dim xlApp As New Microsoft.Office.Interop.Excel.Application
Dim xlWBook As Microsoft.Office.Interop.Excel.Workbook = xlApp.Workbooks.Add(Microsoft.Office.Interop.Excel.XlWBATemplate.xlWBATWorksheet )
Dim xlWSheet As Microsoft.Office.Interop.Excel.Worksheet = CType(xlWBook.Worksheets(1), Microsoft.Office.Interop.Excel.Worksheet)
Dim xlRange As Microsoft.Office.Interop.Excel.Range = CType(xlWSheet, Microsoft.Office.Interop.Excel.Worksheet).Range("A2")
Dim xlCalc As Microsoft.Office.Interop.Excel.XlCalculation
Dim i As Short

'Turn off Excel's calculation.
With xlApp
xlCalc = .Calculation
.Calculation = Microsoft.Office.Interop.Excel.XlCalculation.xlCalculationManual
End With
'Write the fieldnames.
For Each fld In rst.Fields
xlRange.Offset(0, i).Value = fld.Name
i = i + 1
Next
'Populate the range.
xlRange.Offset(1, 0).CopyFromRecordset(rst)
'Close the recordset.
rst.Close()
'Make Excel available to the user.
With xlApp
.Visible = True
.UserControl = True
'Restore the calculation mode.
.Calculation = xlCalc
End With
'Release variables from memory.
fld = Nothing
rst = Nothing
cnt = Nothing
xlRange = Nothing
xlWSheet = Nothing
xlWBook = Nothing
xlApp = Nothing