I went to an Excel training session last week and whilst learning about creating and saving Macros (riveting) I fiddled about and produced something pretty good looking. Excel seems to be a good tool for making pictures with blocks of colour. Here is my first piece of Excel art, which I'm calling 'Roman Rock Pillars.'
(I would like you to be able to see the large version of this image when you click on it, but I'm new to blogging and don't know how to make that happen, so any tips are welcome.)
I found that I am not the first person to make pictures with Excel. Someone called Danielle Aubert has done it before and made a book containing all her experimental pictures. Here is one of them, and you can look at more on her website: http://www.danielleaubert.com/print/exceldrawings_book.html
Someone called Alice Sarmiento even has a term for Excel art. She calls it a petik, which is something like twiddling your thumbs/wasting time when you're supposed to be working. Here is one of her pictures, and you can read a bit about her theory on petiks here: http://new-slang.com/2010/08/the-gentle-art-of-making-petiks/