Vague question, but...

First, put your data array into a range of cells. Then create the surface
chart. One surface per chart.

This reply will probably be useless, so consider posting some more details.
Or, do a search at www.groups.google and you'll find lots of info about
Excel's surface charts.

John Walkenbach
For Excel tips, macros, & downloads...
http://j-walk.com/ss

"richard bointon" wrote in message
...
I'm trying to show a data array as a surface. The help
file shows an example but no assistance. Firstly how do I
prepare the data and secondly can I show more than one
surface on a single chart?