Microsoft have launched the Office 2013 preview which is available from the Microsoft website (click here for link). You will need a live account (Microsoft email address) to sign in to allow you to download the installer. Once downloaded, installation is as easy as the two of its predecessors (2010 and 2007) with a minimal design feel and easy to understand installation options. Be aware that if you opt for the full installation, this new version will hog over 3GB of hard disk space (making it the hungriest version of Office yet!).