Documents by Readdle - A central hub for all your files.
GoodReader - With GoodReader on your iPhone, iPod Touch or iPad, you can read virtually anything, anywhere.
Documents Pro 7 - The ultimate all-in-one mobile office suite for the iPhone and iPad with 8 premium apps in 1.
OPlayer HD - OPlayer HD offers you a chance to play your videos and live streams as you like and directly transform your file in any format without any discontinuity.
GOM Media Player - GOM Media Player is a free media player with built-in audio and video codecs.
FileApp - FileApp is an iPhone and iPad File System and Document Viewer.