Sub LoopAllExcelFilesInFolder()

Dim wb As Workbook
Dim myPath As String
Dim myFile As String
Dim myExtension As String
Dim FldrPicker As FileDialog

'Optimize Macro Speed
  Application.ScreenUpdating = False
  Application.EnableEvents = False
  Application.Calculation = xlCalculationManual
  ActiveWorkbook.CheckCompatibility = False
  Application.AskToUpdateLinks = False
  Application.DisplayAlerts = False

'Retrieve Target Folder Path From User
  Set FldrPicker = Application.FileDialog(msoFileDialogFolderPicker)

    With FldrPicker
      .Title = "Select A Target Folder"
      .AllowMultiSelect = False
        If .Show <> -1 Then GoTo NextCode
        myPath = .SelectedItems(1) & ""
    End With

'In Case of Cancel
NextCode:
  myPath = myPath
  If myPath = "" Then GoTo ResetSettings

'Target File Extension (must include wildcard "*")
  myExtension = "*.xls*"

'Target Path with Ending Extention
  myFile = Dir(myPath & myExtension)

'Loop through each Excel file in folder
  Do While myFile <> ""
    'Set variable equal to opened workbook
      Set wb = Workbooks.Open(Filename:=myPath & myFile)

    'Ensure Workbook has opened before moving on to next line of code
      DoEvents

    'If DataEntry is the active ws, then change to the next worksheet
    If ActiveSheet.Name = "DataEntry" Then
    ActiveSheet.Next.Activate
    End If

      'Insert a Column of Worksheet names
    Columns(1).Insert
      For i = 1 To Sheets.Count
      Cells(i, 1) = Sheets(i).Name
      Next i

      'Selects then Copy/Paste into SCD list
        If Cells(2, 1).Value = "" Then
        Cells(1, 1).Select
        Selection.Copy
        Else:
        Range(Range("A1"), Range("A1").End(xlDown)).Select
        Selection.Copy
        End If

        Windows("SCD List.xlsm").Activate

        'Paste into SCD List
        If Cells(1, 1).Value = "" Then
            Cells(1, 1).Select
        Else:
        Range("A1").End(xlDown).Offset(1, 0).Select
        End If
        ActiveSheet.Paste

    'Closes Workbook without copying
      wb.Close SaveChanges:=False

    'Ensure Workbook has closed before moving on to next line of code
      DoEvents

    'Get next file name
      myFile = Dir
  Loop

'Message Box when tasks are completed
  MsgBox "Task Complete!"

ResetSettings:
  'Reset Macro Optimization Settings
    Application.EnableEvents = True
    Application.Calculation = xlCalculationAutomatic
    Application.ScreenUpdating = True

End Sub