muCommander is a versatile, open-source file management tool with a dual-pane layout that works seamlessly across all major operating systems. It offers functionality such as copying, moving, renaming, and batch renaming files, as well as the ability to email them. Users can take advantage of multiple tabs and universal bookmarks for enhanced organization, along with a credentials manager to securely store access information. The application allows for customizable keyboard shortcuts for improved efficiency and supports integration with cloud storage services like Dropbox and Google Drive. Its virtual filesystem is capable of handling local volumes and various protocols including FTP, SFTP, SMB, NFS, HTTP, Amazon S3, Hadoop HDFS, and Bonjour. Additionally, muCommander can manage archives in formats such as ZIP, RAR, 7z, TAR, GZip, BZip2, ISO/NRG, and AR/Deb, while providing checksum calculations for file verification. The user interface is fully customizable, allowing users to adjust toolbars and themes to their liking, and it is available in a variety of languages. Notably, muCommander is a lightweight, cross-platform file manager that requires Java 11 or later for operation. Users are encouraged to report bugs, propose new features, answer inquiries, contribute to documentation, create video tutorials, or assist in translating the user interface. To begin using Open Office with muCommander, simply open the document in a "native" manner, which is mapped to shift-enter by default.