Ultra compression; can use up to a 256 MB window size but requires significantly more RAM and time. How to Use X1.7z Files
The format is an open-source, highly efficient compressed archive container. It was originally introduced as the native format of the 7-Zip software and is known for several key features: Ultra compression; can use up to a 256
It typically achieves 30–70% better compression than the standard ZIP format. Ultra compression; can use up to a 256
To create a fast archive using the "x1" level, the command would look like: 7z a archive.7z -mx1 source_folder . Ultra compression; can use up to a 256