The macOS Finder can often unpack these natively, but third-party tools like Commander One are required to create them or view contents without full extraction. :

To "look at" or report on the specific contents of mna.7z , you must use an archive manager: :

: Most commonly uses the LZMA or LZMA2 algorithms, which provide a significantly higher compression ratio than standard ZIP files.

Use the official 7-Zip File Manager (7zFM.exe) for a graphical interface.

: Be cautious when opening archives from unknown sources. A high-severity vulnerability ( CVE-2025-0411 ) was recently identified that could allow attackers to bypass Windows security features to spread malware. How to Open or View the Contents

The file mna.7z refers to a compressed archive in the , a high-compression file type typically managed by the open-source 7-Zip utility . Technical Summary of 7z Files

: Supports robust AES-256 encryption. In some configurations, both the file contents and the filenames themselves can be hidden until a password is provided.

ZArchiver is a common choice for mobile users to extract and view 7z archives. 7z - man pages section 1: User Commands