Judy -

If you want something to be plotted in an Excel chart, you pretty much need to add a
new series. But adding a new series is not a big deal. The links John has proposed
guide you through the process.

- Jon
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Jon Peltier, Microsoft Excel MVP
Peltier Technical Services
Tutorials and Custom Solutions
http://PeltierTech.com/
_______

Judy wrote:

How do I easily draw in Excel the Upper and Lower limits of a control chart?

I want to draw lines for target, min value and max values. How I can do
that without having to make complete data series?