X1.7z -

It supports AES-256 encryption , allowing you to protect the names of files within the archive as well as their content.

It typically achieves 30–70% better compression than the standard ZIP format. It supports AES-256 encryption , allowing you to

A 7z archive starts with a 32-byte header containing the file's signature and a link to the end header. Compression Levels (The "X" Parameter) Compression Levels (The "X" Parameter) If a

If a .7z file is too large for email or specific storage, 7-Zip can split it into smaller "chunks" (e.g., X1.7z.001 , X1.7z.002 ) which can then be rejoined. How to recover corrupted 7z archive x1: Fastest compression; uses a 1 MB window size

When using 7-Zip via the command line, the -mx switch determines the compression level. The number following "x" (ranging from 0 to 9) dictates how hard the computer works to shrink the file: No compression (Store mode). x1: Fastest compression; uses a 1 MB window size . x5: Normal compression (Default).

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: