There’re a lot of apps out there in the Apple Store for both office and work use. The app I have been using for almost a year is Office 2 HD. This app cost me below 10 bucks which compared to some asking for more than 20 or so. I have to admit that the more expensive apps do provide more features and capabilities. Never less, I’m comfortable with Office 2 HD and the updates and support have been quite consistent since I ever started to use.
Office 2 HD keeps me going for my daily work flow. Opening and editing of common Microsoft Office files (Word, Excel, PowerPoint – viewing only) are essential enough for me. Transferring of files via network is a bonus and convenient which doesn’t require to sync with iTune. On top of these, Office 2 HD also support viewing of PDF and video files.