Private Sub CommandButton3_Click()
Dim T1, i As Byte, CTR As Control
Worksheets("TDB").Columns("A:BZ").Hidden = True
For Each CTR In Me.Controls
If TypeName(CTR) = "CheckBox" Then
If CTR Then
T1 = Split(CTR.Tag, ",")
For i = LBound(T1) To UBound(T1)
Worksheets("TDB").Cells(1, Val(T1(i))).EntireColumn.Hidden = False
Next
End If
End If
Next
Worksheets("TDB").Range("A1").Select
End Sub