Close workbook, but leave the new application instance opened

Hi all! Please help!

i use 2 macros: one - to open workbook in new app instance and second - to close this workbook. the problem is that new app instance closing together with workbook. How to avoid that ???????????? Thanks in advance!!

Dim appXL As New Excel.Application
Dim Redemptions As Workbook

Sub redemptions_open()

On Error Resume Next
    Set Redemptions = Workbooks("Eurobonds Redemptions.xlsm")
On Error GoTo 0

Application.DisplayAlerts = False

If Redemptions Is Nothing Then
    On Error Resume Next
        appXL.Workbooks.Open "F:\ANALIS\USER\Golinsky\FILES\EUROBONDS\Eurobonds Redemptions.xlsm"
        appXL.Visible = True
    On Error GoTo 0
End If

Application.DisplayAlerts = True
End Sub

Sub redemptions_close()

On Error Resume Next
    Set Redemptions = appXL.Workbooks("Eurobonds Redemptions.xlsm")
On Error GoTo 0

If Not Redemptions Is Nothing Then Redemptions.Close SaveChanges:=True

End Sub