Heres a spin on tag clouds in excel, where you can set up a list of noise words, and set a threshold of how many occurrences are needed before it is included.
http://ramblings.mcpher.com/Home/exc.../json/tagcloud

I use similar code to quickly sum up groups of emails in outlook
http://ramblings.mcpher.com/Home/exc...son/tagoutlook

Finally, it uses a heatmap color ramp To colorise the results
http://ramblings.mcpher.com/Home/exc...map/rampcharts


Bruce