Document Manager is a convenient and powerful file browser for Android models. Provides free, fast, and multiple functions. The UI on the home page is clean and very easy to use. Allows you to operate files and folders, network-attached storage, and  Cloud services such as Dropbox and Google Drive in a concise manner.
Help you manage phone memory, remote, cloud storage. Supports a variety of common operations: open, search, browse directories, copy, paste, move, delete, rename, compress, decompress, download, bookmark, organize. Document Manager supports various media and common file formats including Android installation packages.

The main function:
Main memory: manage all files and folders on your device memory
SD card: On the SD card, all files and folders can be managed
U disk: manage all files and folders of U disk through OTG
Downloads: In the download folder, manage the downloaded data. Including Android installation package and ZIP archive.
Images: Manage images in storage (multiple views). Support image preview. Supported formats: bmp, gif, jpg, png, etc.
Music: Manage files in all music and sound formats. Supported formats: mp3, ogg, flac, m4p, wav, wma, etc.
Videos: Manage all video files in storage. Supported formats: asf, avi, flv, mp4, mpeg, wmv, etc.
Documents: Manage all documents in storage. Supported formats: doc, ppt, pdf, etc.
Applications: View all applications downloaded in the main memory. Supports stopping or uninstalling applications. You can quickly clean cache files of applications. Moreover, it supports backup of Android installation package.
New Files: Support viewing recently downloaded or pasted files in main memory.