How do I apply a macro to multiple excel files when the macro contains many subs? - vba

Question

I have used a macro to track changes in a workbook, but I would now like to run this macro in over a 100 excel files within a particular folder using a Do While Loop.
I am very new to VBA and will appreciate all the help I can get.
I have come across some code that should enable me to loop through excel files in a folder and run the macro in each one.
However it requires me to get rid of the 'sub' and 'end sub' from the macro when I copy and paste it into the do while loop, but I have 3 of them within the macro; some variables will be undefined if I delete all 3.
Therefore I tried 'Call Tracker' within the loop ('Tracker' being the macro name) and hoped it would run in each excel file.
Sub LoopThroughFiles()
Dim xFd As FileDialog
Dim xFdItem As Variant
Dim xFileName As String
Set xFd = Application.FileDialog(msoFileDialogFolderPicker)
If xFd.Show = -1 Then
xFdItem = xFd.SelectedItems(1) & Application.PathSeparator
xFileName = Dir(xFdItem & "*,xls*")
Do While xFileName <> ""
With Workbooks.Open(xFdItem & xFileName)
'Your code here
Call Tracker
End With
xFileName = Dir
Loop
End If
End Sub
Below is the code inside 'Tracker'
Option Explicit
Dim sOldAddress As String
Dim vOldValue As Variant
Public Sub Workbook_TrackChange(Cancel As Boolean)
Dim Sh As Worksheet
For Each Sh In ActiveWorkbook.Worksheets
Sh.PageSetup.LeftFooter = "&06" & ActiveWorkbook.FullName & vbLf & "&A"
Next Sh
End Sub
Public Sub Workbook_SheetChange(ByVal Sh As Object, ByVal Target As Range)
Dim wSheet As Worksheet
Dim wActSheet As Worksheet
Dim iCol As Integer
Set wActSheet = ActiveSheet
'Precursor Exits
'Other conditions that you do not want to track could be added here
If vOldValue = "" Then Exit Sub 'If you comment out this line *every* entry will be recorded
'Continue
On Error Resume Next ' This Error-Resume-Next is only to allow the creation of the tracker sheet.
Set wSheet = Sheets("Tracker")
'**** Add the tracker Sheet if it does not exist ****
If wSheet Is Nothing Then
Set wActSheet = ActiveSheet
Worksheets.Add(After:=Worksheets(Worksheets.Count)).Name = "Tracker"
End If
On Error GoTo 0
'**** End of specific error resume next
On Error GoTo ErrorHandler
With Application
.ScreenUpdating = False
.EnableEvents = False
End With
With Sheets("Tracker")
'******** This bit of code moves the tracker over a column when the first columns are full**'
If .Cells(1, 1) = "" Then '
iCol = 1 '
Else '
iCol = .Cells(1, 256).End(xlToLeft).Column - 7 '
If Not .Cells(65536, iCol) = "" Then '
iCol = .Cells(1, 256).End(xlToLeft).Column + 1 '
End If '
End If '
'********* END *****************************************************************************'
.Unprotect Password:="Secret"
'******** Sets the Column Headers **********************************************************
If LenB(.Cells(1, iCol).Value) = 0 Then
.Range(.Cells(1, iCol), .Cells(1, iCol + 7)) = Array("Cell Changed", "SAP ID", "Field Name", "Old Field Value", _
"New Field Value", "Time of Change", "Date Stamp", "User")
.Cells.Columns.AutoFit
End If
With .Cells(.Rows.Count, iCol).End(xlUp).Offset(1)
If Target.Count = 1 Then
.Offset(0, 1) = Cells(Target.Row, 2) 'SAPID
End If
'.Offset(0, 1) = Cells(Target.Row, 2) 'SAPID
If Target.Count = 1 Then
.Offset(0, 2) = Cells(Target.Column) 'Field name
End If
'.Offset(0, 2) = Cells(Target.Column) 'Field name
.Value = sOldAddress
.Offset(0, 3).Value = vOldValue
If Target.Count = 1 Then
.Offset(0, 4).Value = Target.Value
End If
.Offset(0, 5) = Time
.Offset(0, 6) = Date
.Offset(0, 7) = Application.UserName
.Offset(0, 7).Borders(xlEdgeRight).LineStyle = xlContinuous
End With
.Protect Password:="Secret" 'comment to protect the "tracker tab"
End With
ErrorExit:
With Application
.ScreenUpdating = True
.EnableEvents = True
End With
wActSheet.Activate
Exit Sub
ErrorHandler:
'any error handling you want
'Debug.Print "We have an error"
Resume ErrorExit
End Sub
Public Sub Workbook_SheetSelectionChange(ByVal Sh As Object, ByVal Target As Range)
With Target
sOldAddress = .Address(external:=True)
If .Count > 1 Then
vOldValue = "Multiple Cell Select"
Else
vOldValue = .Value
End If
End With
End Sub
'Call Tracker' in the loop does not produce an error. In fact the code seems to execute and loops through all the files but it does not run the macro in each one it opens.