Powerpoint: https://itunes.apple.com/us/app/microsoft-powerpoint-for-ipad/id586449534?mt=8
Word: https://itunes.apple.com/us/app/microsoft-word-for-ipad/id586447913?mt=8
Excel: https://itunes.apple.com/us/app/microsoft-excel-for-ipad/id586683407?mt=8
The bad part is that you'll need an Office 365 subscription to edit the files.
Word: https://itunes.apple.com/us/app/microsoft-word-for-ipad/id586447913?mt=8
Excel: https://itunes.apple.com/us/app/microsoft-excel-for-ipad/id586683407?mt=8
The bad part is that you'll need an Office 365 subscription to edit the files.