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The tool performs a "brute-force" size comparison for each file extension within an archive to ensure maximum space savings.

Because this tool re-processes your archives, it is highly recommended to create a backup copy before use. Datei herunterladen Ultra7z_Archive_Optimizer_1...

(often referred to as Ultra7z Optimizer) is a specialised command-line utility designed to further shrink existing 7z, ZIP, or RAR archives by automatically testing and applying the most efficient compression methods. Core Features and Usage The tool performs a "brute-force" size comparison for

In benchmark tests, standard 7-Zip archives (at Ultra settings) have been further reduced by the Optimizer. For example, a 11.5 MB archive was reduced to using version 0.03, demonstrating its ability to squeeze extra space out of "already compressed" files. Core Features and Usage In benchmark tests, standard

While primarily for 7z archives, it can process any format supported by the standard 7-Zip utility, including ZIP and RAR.

It intelligently toggles between LZMA , PPMD , and DEFLATE algorithms depending on which produces the smallest file size for a specific file type.

Always verify the integrity and content of optimized archives after the process is complete to ensure no data loss occurred. Comparative Performance