As for formatting, I found using a search engine helped. My search came up with, amongst others, the following:

http://stackoverflow.com/questions/4559233/technique-for-selectively-formatting-data-in-a-powershell-pipeline-and-output-as

https://community.spiceworks.com/scripts/show/2450-change-cell-color-in-html-table-with-powershell-set-cellcolor