You may use a macro for this. try
Sub change_rows()
Dim RowNdx As Long
Dim LastRow As Long
Application.ScreenUpdating = False
LastRow = ActiveSheet.Cells(Rows.Count, "A").End(xlUp).row
For RowNdx = 1 to LastRow
with Cells(RowNdx, "A")
if .value <> "" then
.value = "'0" & mid(.value,2,255)
End If
end with
Next RowNdx
Application.ScreenUpdating = True
End Sub
...
A few things. For generality, it's usually better to make the user select the
cells to be operated upon before running macros as opposed to hardcoding the
range in the macro. Also, the OP likely doesn't want to do this to cells
containing formulas in case such cells are inadvertently selected. Finally,
unlike the MID worksheet function, the 3rd argument to VBA's Mid function is
optional and shouldn't be specified when you want the remainder of the string.
Sub change_rows()
Dim c As Range, f As String
If Not TypeOf Selection Is Range Then Exit Sub
On Error GoTo CleanUp
Application.ScreenUpdating = False
For Each c In Selection
If Not c.HasFormula And c.Formula <> "" Then
c.Formula = "'0" & Mid(c.Formula, 2)
End If
Next c
CleanUp:
Application.ScreenUpdating = True
End Sub