Microsoft’s next generation Windows 8 operating system is due out later this year, which generally means a refreshed version of Microsoft Office – the company’s productivity software – is also on its way. To show off the new interface and updated features, Microsoft has decided to release what it is calling a Customer Preview of Office 2013 that will allow you to try out the new versions of Access, Excel, Word, Excel, OneNote, Outlook, PowerPoint, Publisher, and Word.

The new Office programs feature a refreshed interface that does away with the aero glass windows in favor of the flat metro look, and integrates into Microsoft’s Skydrive cloud storage service. By default, you log into your Skydrive account during installation, and from then on it will store your documents and other files in your Skydrive folder. In addition, Office will allow you to log into the various social networks to retrieve contact data, which is a nice addition to the Outlook email client (in my opinion). You can also utilize the chat features to communicate with friends or coworkers from within the Office 2013 applications. Of course, being designed for Windows 8, Office 2013 has several new ways to interact with the applications using touch controls or a stylus.

The other major change with Office 2013 is the introduction of several new subscription service. While Microsoft has had the Office 365 subscription brand for awhile, they have not really advertised it. With Office 2013, you can choose from four tiers including Office 365 Home Premium, Small Business Premium, ProPlus, and Enterprise. The Home Premium tier is the one that will interest the majority of people as it provides an extra 20GB of Skydrive storage space, a synced Office experience on up to five computers, the ability to stream the Office 2013 applications to another Internet connected computer with Office on Demand, and sixty minutes (every month) of Skype calling minutes. From there, the Small Business Premium and above tiers add business-centric features like HD conferencing, encrypted email, archiving, and other goodies.

Outlook 2013. As you can see, Office 2013's interface has been heavily influenced by Windows 8's Metro UI.

We’ll be playing around with the Office 2013 Customer Preview this week and will report back, so stay tuned. If you want to try it out for yourself, you can grab the Customer Preview download from the Microsoft website (an Internet connection is required during installation). It can be installed on computers running either Windows 7 or Windows 8.

Also, according to Tom’s Hardware, a version of Office 2013 – specifically Office Home and Student 2013 RT – will come pre-installed on all Windows 8 RT (ARM-based) computers, so that is a nice touch (especially since it’s basically the only traditional desktop application that the ARM tablets will be able to run, at least at launch).