Spreadtweet is an Adobe AIR based Twitter application that looks a lot like a spreadsheet. The aim is for users at work to be able to ˇfool their bosses˘ into believing that they are working hard crunching numbers on Excel ;-)

There are 3 different versions available, basically with different skins — Office OS X, Office 2003, Office 2007.

Source : http://twitdom.com/spreadtweet/