VBA Search for Formula Text in Cell


I found the following VBA code that works perfectly when searching for a text string across multiple workbooks in a desired folder.  I am trying to accomplish a similar task but instead search for linked data sources by searching for the brackets contained in the cell formula.

For example, I want the VBA to loop through multiple Excel workbooks looking for formulas that contain the left and right bracket; thus letting me know the workbook contains a linked data source.

The code below works like a charm when looking for specific text versus text in a formula cell.

Example Excel Workbook with formula in cell B2

123      =VLOOKUP(A1,'C:\Users\johndoe\Documents\Test\[book2.xlsx]Sheet1'!$A$1:$B$3,2,FALSE)
456      B  
789      C

VBA Code
Sub SearchWkBooks()

Dim WS As Worksheet
Dim myfolder As String
Dim Str As String
Dim a As Single
Dim sht As Worksheet
Set WS = Sheets.Add
With Application.FileDialog(msoFileDialogFolderPicker)
    myfolder = .SelectedItems(1) & "\"
End With
Str = Application.InputBox(prompt:="Search string:", Title:="Search all workbooks in a folder", Type:=2)
If Str = "" Then Exit Sub
WS.Range("A1") = "Search string:"
WS.Range("B1") = Str
WS.Range("A2") = "Path:"
WS.Range("B2") = myfolder
WS.Range("A3") = "Workbook"
WS.Range("B3") = "Worksheet"
WS.Range("C3") = "Cell Address"
WS.Range("D3") = "Link"
a = 0
Value = Dir(myfolder)
Do Until Value = ""
    If Value = "." Or Value = ".." Then
        If Right(Value, 3) = "xls" Or Right(Value, 4) = "xlsx" Or Right(Value, 4) = "xlsm" Then
            On Error Resume Next
            Workbooks.Open Filename:=myfolder & Value, Password:="zzzzzzzzzzzz"
            If Err.Number > 0 Then
                WS.Range("A4").Offset(a, 0).Value = Value
                WS.Range("B4").Offset(a, 0).Value = "Password protected"
                a = a + 1
                On Error GoTo 0
                For Each sht In ActiveWorkbook.Worksheets
                        Set c = sht.Cells.Find(Str, LookIn:=xlValues, LookAt:=xlWhole, SearchOrder:=xlByRows, SearchDirection:=xlNext)
                        If Not c Is Nothing Then
                            firstAddress = c.Address
                                WS.Range("A4").Offset(a, 0).Value = Value
                                WS.Range("B4").Offset(a, 0).Value = sht.Name
                                WS.Range("C4").Offset(a, 0).Value = c.Address
                                WS.Hyperlinks.Add Anchor:=WS.Range("D4").Offset(a, 0), Address:=myfolder & Value, SubAddress:= _
                                sht.Name & "!" & c.Address, TextToDisplay:="Link"
                                a = a + 1
                                Set c = sht.Cells.FindNext(c)
                            Loop While Not c Is Nothing And c.Address <> firstAddress
                        End If
                Next sht
            End If
            Workbooks(Value).Close False
            On Error GoTo 0
        End If
    End If
    Value = Dir
End Sub

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KANEDA 0149Asked:
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Ejgil HedegaardCommented:
The similar search for a text as part of a formula is
str = "["
Set c = sht.Cells.Find(Str, LookIn:=xlFormulas, LookAt:=xlPart, SearchOrder:=xlByRows, SearchDirection:=xlNext)

If you just want to know if there are links in the workbook, you don't have to loop all sheets and cells, searching for [, use LinkSources.
It is an array with the link specifications, and if it is empty, there are no links in the file.

If Not IsEmpty(ActiveWorkbook.LinkSources) Then
    'The code to display that the file has links.
End If

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KANEDA 0149Author Commented:
Nice, thank you Ejgil Hedegaard.  It worked exactly as I needed!
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