File Manager is a powerful free and easy to use File Explorer application.

The main functions of the file manager:
View hidden files: View the files hidden by the system and observe the storage space more comprehensively.
Categories: Files are organized into categories by their formats. View file in each categorization exactly and enjoy files browsing.
Files: View your storage stats and manage all folders on your device.
Search file: Enter keywords to find files quickly.
FTP: Using FTP you can access your android device storage from PC and manage files on it.

You can preview files on their list.
It supports open copy cut delete rename file operations. It can show hidden files on your device. You can search files by names and you can share files to other applications by using this file manager.