File management and organization tool, simple, small and fast. Explore, create, search, copy, paste, delete, rename, zip... your files and folders. Display info, running processes, backup your applications to SD card. Preview .pdf, .mp3, .txt, .html, word, excel... files. You can find all these magic functions in this piece of software. File Manager is designed for all android devices including phones, phablets and tablets.

*Edit 05.11.2015.
I got some negative reviews and ratings which says that copying is not possible. But it is.
Procedure: long press on file, Copy file, Holding label in red color appears, then go to destination directory (not inside), long press on it, use Paste into folder option. That's it.

Features:
- basic management operations like cut, copy, delete, rename etc. easily accessible
- create new file and folders in a second
- small size with 2MB only, easy to download and keep
- suitable for smartphones, tablets of 7 and 10 inch
- supported image file formats for preview: bmp, gif, jpg, png etc.
- supported audio file formats: mp3, ogg, wav, wma etc.
- supported video file formats: avi, mp4, wmv etc.
- manage all your document files, supported: doc, ppt, pdf, xls, txt etc.
- extract ZIP and RAR archives
- sort your files by name, type, size
- searching of files and directories enabled
- show hidden files and folders option
- customize appearance of application.