Combine Multiple Excel Workbooks Into A Single File

Recently, I had to combine many worksheets of individual server security risk forms into a single workbook. Obviously, I'd rather research a script to do this than manually combine 47 separate files. Finally located another much more scripting-capable individual who had accomplished this with the below Excel macro code. Additionally, my worksheets were protected, so another script was used to perform this process en masse.

Option Explicit 

 '32-bit API declarations
Declare Function SHGetPathFromIDList Lib "shell32.dll" _
Alias "SHGetPathFromIDListA" (ByVal pidl As Long, ByVal _
pszpath As String) As Long 

Declare Function SHBrowseForFolder Lib "shell32.dll" _
Alias "SHBrowseForFolderA" (lpBrowseInfo As BrowseInfo) _
As Long 

Public Type BrowseInfo
    hOwner As Long
    pIDLRoot As Long
    pszDisplayName As String
    lpszTitle As String
    ulFlags As Long
    lpfn As Long
    lParam As Long
    iImage As Long
End Type 

Function GetDirectory(Optional msg) As String
    On Error Resume Next
    Dim bInfo As BrowseInfo
    Dim path As String
    Dim r As Long, x As Long, pos As Integer 

     'Root folder = Desktop
    bInfo.pIDLRoot = 0& 

     'Title in the dialog
    If IsMissing(msg) Then
        bInfo.lpszTitle = "Please select the folder of the excel files to copy."
    Else
        bInfo.lpszTitle = msg
    End If 

     'Type of directory to return
    bInfo.ulFlags = &H1 

     'Display the dialog
    x = SHBrowseForFolder(bInfo) 

     'Parse the result
    path = Space$(512)
    r = SHGetPathFromIDList(ByVal x, ByVal path)
    If r Then
        pos = InStr(path, Chr$(0))
        GetDirectory = Left(path, pos - 1)
    Else
        GetDirectory = ""
    End If
End Function 

Sub CombineFiles()
    Dim path            As String
    Dim FileName        As String
    Dim LastCell        As Range
    Dim Wkb             As Workbook
    Dim WS              As Worksheet
    Dim ThisWB          As String 

    ThisWB = ThisWorkbook.Name
    Application.EnableEvents = False
    Application.ScreenUpdating = False
    path = GetDirectory
    FileName = Dir(path & "\*.xls", vbNormal)
    Do Until FileName = ""
        If FileName <> ThisWB Then
            Set Wkb = Workbooks.Open(FileName:=path & "\" & FileName)
            For Each WS In Wkb.Worksheets
                Set LastCell = WS.Cells.SpecialCells(xlCellTypeLastCell)
                If LastCell.Value = "" And LastCell.Address = Range("$A$1").Address Then
                Else
                    WS.Copy After:=ThisWorkbook.Sheets(ThisWorkbook.Sheets.Count)
                End If
            Next WS
            Wkb.Close False
        End If
        FileName = Dir()
    Loop
    Application.EnableEvents = True
    Application.ScreenUpdating = True 

    Set Wkb = Nothing
    Set LastCell = Nothing
End Sub