Accessing a network file that might already be open by another user

[angelo328]

Hello All
I usually find the code I need from the net as I am not that good at VBA.

I have the following request; how can I adapt this wonderful code:
1. To open another network file so that I can extract the relevant data. Being on a network there is the possibiliy that another user may have it open in which case I will be offered to open it as read only.
2. Extract the values from it - currently the code just links the relevant cells
3. Close the data workbook when extractions are complete.

I hope this makes sense and many thanks in advance for any takers.

Angelo

Code

Sub Summary_All_Worksheets_With_Formulas()
    Dim Sh As Worksheet
    Dim Newsh As Worksheet
    Dim myCell As Range
    Dim ColNum As Integer
    Dim RwNum As Long
    Dim Basebook As Workbook

    With Application
        .Calculation = xlCalculationManual
        .ScreenUpdating = False
    End With

    'Delete the sheet "Summary-Sheet" if it exist
    Application.DisplayAlerts = False
    On Error Resume Next
    ThisWorkbook.Worksheets("Summary-Sheet").Delete
    On Error GoTo 0
    Application.DisplayAlerts = True

    'Add a worksheet with the name "Summary-Sheet"
    Set Basebook = ThisWorkbook
    Set Newsh = Basebook.Worksheets.Add
    Newsh.Name = "Summary-Sheet"

    'The links to the first sheet will start in row 2
    RwNum = 1

    For Each Sh In Basebook.Worksheets
        If Sh.Name <> Newsh.Name And Sh.Visible Then
            ColNum = 1
            RwNum = RwNum + 1
            'Copy the sheet name in the A column
            Newsh.Cells(RwNum, 1).Value = Sh.Name

            For Each myCell In Sh.Range("A1,D5:E5,Z10")  
                ColNum = ColNum + 1
                Newsh.Cells(RwNum, ColNum).Formula = _
                "='" & Sh.Name & "'!" & myCell.Address(False, False) 'this is the section that I need changed
            Next myCell

        End If
    Next Sh

    Newsh.UsedRange.Columns.AutoFit

    With Application
        .Calculation = xlCalculationAutomatic
        .ScreenUpdating = True
    End With
End Sub