Budski,
You can use Rob Bovey's XY Chart Labeler add-in located at:
http://www.appspro.com/Utilities/ChartLabeler.htm
or John Walkenbach's Chart Tools add-in located at:
http://j-walk.com/ss/excel/files/charttools.htm
or you can use the following macro:
Sub AddLabels()
Dim RngLabels As Range
Dim Ser As Series
Dim i As Long
If TypeName(Selection) = "Series" Then
Set Ser = Selection
Set RngLabels = Application.InputBox(prompt:="Select the label
range:", Type:=8)
Ser.HasDataLabels = True
For i = 1 To Ser.Points.Count
Ser.Points(i).DataLabel.Text = RngLabels(i)
Next i
Else
MsgBox "Select a series in a chart."
End If
End Sub
In the dialog box, add the reference to the data source like "Sheet1!A1:A5".