deal on Documents To Go from iTunes (first try free)
This is great to use for school stuff or work. There is a Documents To Go deal from iTunes, so you can have your first time for free. I got it because I always need to reedit my Office files, because I find the mistakes only after reading the fifth time so this is a real helper. You can view, edit and create Microsoft Office files (Word, Excel, PowerPoint)& view Adobe PDF files on your iOS device. You can connect multiple cloud storage accounts, desktop file sync, and opening password-protected files, so it really is a complete package. Hope you find it as useful as I did https://itunes.apple.com/au/app/id317117961?mt=8