I can't believe (as an "Apple Fanboy") that I'm about to say this ..
GAH .. I've had enough of Apple's own offerings now for the office side of things. First off with the latest Pages I've had to reformat all my business templates because they decided that people don't need to use images and tables in headers for any reason whatsoever, so they're removing that features, and now I've found out that all the date defaults in Numbers are the American ..
Trying to sort a table of SpeedTest results in date order from our school IP as part of a complaint we're putting together with all the ongoing issues we've had with our connection, and because it only does American, it doesn't recognise the dates properly in the UK date format ..
So, I'm off back to Microsoft Office me thinks - I would go the OpenOffice route, but I might as well go with something that works and as most of my clients use it, it would make sense to be able to support more directly .. lol ..