You could make a contour or surface chart. This doesn't work with any X and Y values
you want to include, however. You need regularly spaced X and Y values, categories,
really, and exactly one Z value for each possible X-Y pair. It's pretty
unsatisfactory for a topographical map, unless you generate loads of X and Y values.
The data has to be arranged thus:
Y1 Y2 Y3
X1 Z11 Z12 Z13
X2 Z21 Z22 Z23
X3 Z31 Z32 Z33
The top left cell has to be blank. Run the chart wizard and select the Surface or
Contour type you like.
- Jon
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Jon Peltier, Microsoft Excel MVP
Peltier Technical Services
Tutorials and Custom Solutions
http://PeltierTech.com/
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