How could I open another spreadsheet in the same workbook
if the workbook has been already opened?
I'm doing it from MS Access.

If logWorkbookIsOpened = False Then
'it's working good
Set xlBook = xlApp.Workbooks.Open(strWorkbookName)
Set xlSheet = xlBook.Worksheets(strWorksheetName)
xlSheet.Activate

xlApp.Visible = True

Else
'here is a mistake #0
Set xlSheet = Workbooks(strWorkbookName).Worksheets
(strWorksheetName)
xlSheet.Activate
xlApp.Visible = True

End If

Thanks