For i = 1 To 17 Step 4
For j = 12 To 44 Step 16
With ActiveSheet.OLEObjects.Add(ClassType:="Forms.ComboBox.1", Link:=False, _
DisplayAsIcon:=False, Left:=Cells(j, i).Left, Top:=Cells(j, i).Top, Width:=Range("A" & j & ":D" & j).Width, Height:= _
Range("A" & j & ":D" & j).Height)
.Name = "Comb" & l
For m = 2 To 16
With .Object
.AddItem Cells(m, 21).Value
End With
Next m
End With
l = l + 1
Next j
Next i