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.
FileApp - FileApp is an iPhone and iPad File System and Document Viewer.
FE File Explorer - The one-stop files solution
Document Manager - Document Manager is an all-in-one document management software solution that allows you to download documents from anywhere, store all your documents in one place, edit them with leading tools, and share them with others.
Filza File Manager - Explore files and folders with list view or grid view. View / edit files with powerful viewers.