Workbook Exists
Function WorkbookExists(sWbName As String) As Boolean
‘Returns True if workbook is open
Dim oWb As Workbook
On Error Resume Next
Set oWb = Workbooks(sWbName)
WorkbookExists = Not CBool(Err.Number)
On Error GoTo 0
End Function

Dick,
Although this is less readable, it’s faster and a bit shorter:
Function WorkbookExists(sWbName As String) As Boolean On Error Resume Next WorkbookExists = Len(Workbooks(sWbName).Name) On Error GoTo 0 End FunctionOr faster yet:
Function WorkbookExists(sWbName As String) As Boolean On Error Resume Next WorkbookExists = Not Workbooks(sWbName) Is Nothing On Error GoTo 0 End Function