Sub mise_enforme()
Set range_C = Range("A2:A6")
For Each cel In range_C
a = cel.Value
a = Replace(a, " ", "")
a = Replace(a, ",,", ",")
On Error Resume Next
Cells(cel.Row, cel.Column + 1).Value = CDbl(a)
If Err.Number <> 0 Then Cells(cel.Row, cel.Column + 1).Value = a
On Error GoTo 0
Next
End Sub