Private Sub CommandButton4_Click()
    Dim FileName As Variant
    Dim Sep As String
    FileName = Application.GetSaveAsFilename(InitialFileName:=vbNullString, FileFilter:="Text Files (*.txt),*.txt")
    If FileName = False Then
        ''''''''''''''''''''''''''
        ' user cancelled, get out
        ''''''''''''''''''''''''''
        Exit Sub
    End If
    Sep = ","
    If Sep = vbNullString Then
        ''''''''''''''''''''''''''
        ' user cancelled, get out
        ''''''''''''''''''''''''''
        Exit Sub
    End If
    Debug.Print "FileName: " & FileName, "Separator: " & Sep
    ExportToTextFile FName:=CStr(FileName), Sep:=CStr(Sep), _
       SelectionOnly:=False, AppendData:=True
Unload Me
End Sub
Public Sub ExportToTextFile(FName As String, _
    Sep As String, SelectionOnly As Boolean, _
    AppendData As Boolean)
Dim WholeLine As String
Dim FNum As Integer
Dim RowNdx As Long
Dim ColNdx As Integer
Dim StartRow As Long
Dim EndRow As Long
Dim StartCol As Integer
Dim EndCol As Integer
Dim CellValue As String
 
Application.ScreenUpdating = False
On Error GoTo EndMacro:
FNum = FreeFile
Sheets("Sheet4").Range("a13:h53").Select
    With Selection
        StartRow = .Cells(1).Row
        StartCol = .Cells(1).Column
        EndRow = .Cells(.Cells.Count).Row
        EndCol = .Cells(.Cells.Count).Column
    End With
 
If AppendData = True Then
    Open FName For Append Access Write As #FNum
Else
    Open FName For Output Access Write As #FNum
End If
For RowNdx = StartRow To EndRow
    WholeLine = ""
    For ColNdx = StartCol To EndCol
        If Cells(RowNdx, ColNdx).Value = "" Then
            CellValue = Chr(34) & Chr(34)
        Else
           CellValue = Cells(RowNdx, ColNdx).Value
        End If
        WholeLine = WholeLine & CellValue & Sep
    Next ColNdx
    WholeLine = Left(WholeLine, Len(WholeLine) - Len(Sep))
    Print #FNum, WholeLine
Next RowNdx
EndMacro:
On Error GoTo 0
Application.ScreenUpdating = True
Close #FNum
End Sub