How to check if ANY excel workbook is open?

Question

I have a VBA project in excel which hides the workbook in the background and only shows the userform, it works fine however, causes problems when other workbooks are open as it

Answer 1

I think, since 'ActiveWorkbook' can also be empty, the safest answer for VBA may be:

Option Explicit

Public Function IsAnyWorkbookOpen() As Boolean
    IsAnyWorkbookOpen = (Application.Workbooks.Count > 0)
End Function

Sub test()
    MsgBox ("IsAnyWorkbookOpen returns: " + CStr(IsAnyWorkbookOpen()))
End Sub