Microsoft Office Mobile is your office away from the office.
Go to the Office hub to create and edit Word documents and Excel workbooks, open and view PowerPoint slide shows, and share documents with SharePoint.
You can also save your documents to Windows SkyDrive. SkyDrive is cloud storage that you can use to access your documents from your phone, tablet, computer, or Xbox. When you stop working on a document, and go back to it later, you’re in the same place where you left it – no matter which device you're using.
Microsoft Office Mobile consists of the following:
Microsoft Word Mobile
Microsoft Excel Mobile
Microsoft PowerPoint Mobile
Microsoft SharePoint Workspace Mobile