Excel doesn't know how to interpret your two-column X values, so it uses the
values it always does when this happens: 1, 2, 3, etc. Excel uses these
counting numbers if the X values consist of text (even a single text value
in the range), or if no X values are even specified.

If you want to add X values to a single series, put them at the end of the
original range of X values.

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


"SamB" wrote in message
...
Hi,

I am using the Series tab (i have done a scatter plot) - i have put in 1
series of X and Y data. then i extended the "x values" data to include
two
columns of data. the scale is now different and my graph is in 2D still,
i
am wondering what relationship is now being described by my scatter plot.

Thanks