Hi Ian,
I really just want to show 2D spheres which represent data by their size. So in the case of population of cities, New York would be a big sphere and say Kansas, would be a much smaller one, but the size would equate accurately to the population.
Sgill, above, indicates that it has to have three columns to work as what I want seems to not be directly achievable. It needs the X and Y and value, so that's what I have done, but I discovered a big flaw in my data. The largest number was so large that it appeared as one large sphere and the smaller places were so small as to not be big enough to appear at all, so that's why I was only seeing one sphere. Now I get it! It is a workaround, but it is achievable.
Thanks,
David