If you want to run Microsoft Windows 7 And Microsoft Office On your iPad then OnLive Desktop app is
perfect for you.According to OnLive, the developer of this app,it allows users to get access of Microsoft Windows 7 And Microsoft Office on iPad via free cloud base connection.
OnLive Desktop App Features:
Instantly view, edit and create documents using actual Microsoft® Office Word, Excel and PowerPoint
Easily transfer files between OnLive Desktop and other devices
Experience high-performance, instant-response PC applications
Interact with lag-free animation and video
In order to get OnLive Desktop app on your iPad you have to make an account on OnLive which is free and then you can use this wonderful app on your iPad.The basic version of this app is available free at Apple App Store while Pro version starts at $9.99/m.