(Experimental Multi-Model Archiver) is a context mixing compressor designed by Maksymilian (Max) Nawara . If you are looking for its "proper" or most distinctive feature, it is its use of Context Mixing algorithms to achieve high compression ratios. Key Features of EMMA
Because "Emma" and ".7z" are common terms, this often gets mixed up with: Emma.7z
: Unlike standard ZIP or 7z methods (which typically use LZMA or Deflate), EMMA uses context mixing. This technique predicts the next bit of data based on multiple independent models, leading to better compression for specific file types. This technique predicts the next bit of data
: A Java tool for measuring how much code is executed during testing. How to Use 7-Zip to Compress Files and Extract Files C i input_file output_file
: Users can perform (de)compression using specific presets (e.g., C i input_file output_file , where i is the index of the preset).