Free Access Microsoft Office Web Apps from Hotmail Account

From the Hotmail account you can access Microsoft office web application in free
Open, view, and edit documents right in your inbox
Now the Word, Excel, and PowerPoint files in your inbox can be viewed and edited without leaving Hotmail. If you need to make edits to an attachment, Hotmail lets you do it from your inbox without worrying about downloading files or installing software. You can even start a PowerPoint slide show and it will include all the animations and transitions.

Share Microsoft Office documents online and work together with others
Just like how you can share large photo albums, Hotmail lets you send large documents and other files via a link—up to 200 files, each up to 50 MB—using online storage, so you avoid clogging anyone’s inbox. And by sending from your Hotmail account, recipients can also use the free Microsoft Office Web Apps to view and edit your document—no matter what email service they use or version of Microsoft Office they have installed.