# xz > Compress or decompress `.xz` and `.lzma` files. > More information: . - Compress a file using xz: `xz {{path/to/file}}` - Decompress an xz file: `xz --decompress {{path/to/file.xz}}` - Compress a file using lzma: `xz --format=lzma {{path/to/file}}` - Decompress an lzma file: `xz --decompress --format=lzma {{path/to/file.lzma}}` - Decompress a file and write to `stdout` (implies `--keep`): `xz --decompress --stdout {{path/to/file.xz}}` - Compress a file, but don't delete the original: `xz --keep {{path/to/file}}` - Compress a file using the fastest compression: `xz -0 {{path/to/file}}` - Compress a file using the best compression: `xz -9 {{path/to/file}}`