Android > Tools > File Management

Computer File Explorer
Computer is a piece of exploration software for your Android system that was designed to mimic the experience of using the My Computer or Computer modules in a Windows system
Amazon Cloud Drive
Access documents, music, videos and photos with Amazon Cloud Drive
WD My Cloud
WD My Cloud is a free file management app for Android devices
CloudBuckIt
CloudBuckIt app is a great way to combine all your cloud storage accounts into one single app
Share it
Share your files and folders with whomever you please
Dukto
A simplified approach to transferring files