MK Explorer File Manager is a free Android app that allows you to manage files on your device. It has a simple and clean Material Design interface. The app provides basic functions like delete, copy, paste, and move, along with two windows (panels) to view files and keyboard shortcuts. Additionally, you can search for files, view thumbnails of images, videos, and APK files, and extract ZIP and RAR archives. You can also compress files to ZIP and access root files. The app comes with a built-in gallery, text editor, and music player. It supports 20 languages and is adapted to smartphones and tablets of 7 and 10 inches. The app requires permissions to write and read files, add shortcuts to the desktop, get access to root files, and perform operations on files when the screen is off.

The app is a great option for those who want a simple file manager with essential features. However, it may not be suitable for advanced users who require more advanced features like cloud storage integration, FTP support, or network storage access.