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: It supports AES-256 bit encryption , which can protect both the file content and the archive headers (hiding the names of the files inside the archive from unauthorized users).
: While the 7z format itself is safe, you should only open files like "MrSmith.7z" if they come from a trusted source , as archives can be used to hide malicious software.
: This feature allows multiple similar files to be compressed as a single stream, significantly reducing the final size by exploiting redundancies between them.
: The 7z format is known for superior compression, often outperforming ZIP and RAR formats, especially when using the LZMA or LZMA2 algorithms.
: You can open this file using the free, open-source 7-Zip utility or other popular tools like WinRAR and PeaZip .