Mi File Manager is a free, secure tool that helps you find file faster, manage files easily, and share them offline with others. It supports tons of cool features: quick search, moving, deleting, opening, and sharing files, as well as renaming, unzipping, and copy-paste. Mi File Manager also recognizes multiple file formats, including music, videos, images, documents, APKs, and zip-files. We update our app regularly to bring you the best experience. With Mi File Manager’s crisp and clear UI, file management becomes easier than ever before!

Key features
Recent: View the files you worked with recently without looking for them.
Categories: Files are organized into categories by their formats. From there, you can access to frequently used apps quickly.
Storage: View your storage stats and manage all folders on your device.
Cleaner: Free up storage space on your device by deleting cache and junk files.
Mi Drop: Share files with friends who are nearby without connecting to the Internet.
Global search: Enter keywords to find files.
Multiple file formats support: Open videos, music, documents, APKs, and compressed files with one tap.
File compression: Compress and decompress ZIP/RAR archives.
Manage multiple files: Select multiple files for the same operation.
Multiple languages supported: Bahasa Indonesia, Bengali, Chinese, English, Español, Português, ру́сский язы́к, українська мова, Tiếng Việt

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Source: https://play.google.com/store/apps/details?id=com.mi.android.globalFileexplorer