Microsoft last month released its native and rather nicely done Word, PowerPoint and Excel iPad apps as free downloads from the App Store. You're limited to using these apps to view Microsoft Office documents on your tablet as editing and creating new ones requires one of the many Office 365 subscriptions available.
The iPad apps launched with Microsoft's entry-level Office 365 Home subscription plan costing $9.99 per month. If you don't want to pay ten bucks per month just to edit Office documents, Microsoft now offers a more affordable Personal plan for $6.99 per month...