This should help you.
http://www.peltiertech.com/Excel/Cha...tml#DynoLast12

"Beertje" wrote in message
...
I have a weekly graph showing orders per week. The data of this graph is
updated weekly. Today to update the graph I need to select the graph, go
to
source data and add one more point. Can I have this done automatically?
Thanks.