vb编程把数据库导出为excel

从access数据库中导出数据到为excel（sql数据库类似）：

dim conn as adodb.connection
Dim rs1 As New ADODB.Recordset
dim sql as string

set conn=new adodb.connection
if conn.state<>0 then conn.close
conn.open "Provider=Microsoft.Jet.OLEDB.4.0;Persist Security Info=False;Data Source=" & App.Path & "\sclsylb.mdb"

sql="SELECT * FROM QS800"      'QS800表你应该很熟悉
if rs1.state<>0 then rs1.close
rs1.cursorlocation=aduserclient
rs1.open sql,conn,1,3


'导出xls表
Dim xlApp     As New Excel.Application
Dim xlBook     As Excel.Workbook
Dim xlSheet     As Excel.Worksheet
Dim xlQuery     As Excel.QueryTable
'On Error GoTo OutPutErr
Set xlBook = xlApp.Workbooks().Add
Set xlSheet = xlBook.Worksheets("sheet1")
Set xlQuery = xlSheet.QueryTables.Add(rs1, xlSheet.Range("a1 "))

With xlQuery
        .FieldNames = True
        .RowNumbers = False
        .FillAdjacentFormulas = False
        .PreserveFormatting = True
        .RefreshOnFileOpen = False
        .BackgroundQuery = True
        .RefreshStyle = xlInsertDeleteCells
        .SavePassword = True
        .SaveData = True
        .AdjustColumnWidth = True
        .RefreshPeriod = 0
        .PreserveColumnInfo = True
End With

xlQuery.FieldNames = True
xlQuery.Refresh
cmdlg.Flags = 2
cmdlg.Filter = "EXCEL文档(*.xls)"
cmdlg.ShowSave

If cmdlg.FileName <> "" Then
    xlApp.DisplayAlerts = False
    xlBook.SaveAs FileName:=cmdlg.FileName

    If MsgBox("导出成功,是否打开查看?", vbOKCancel, "导出EXCEL") = vbOK Then
        xlApp.Workbooks().Open cmdlg.FileName
        xlApp.Visible = True
    Else
        xlApp.Quit
    End If
End If
If xlApp <> Null Then Set xlApp = Nothing
set conn=nothing
set rs1=nothing