Linux. xz archiver

# Install on Debian:
sudo apt install xz-utils

# Install on CentOS/Fedora:
sudo dnf install xz

# Install on OpenSuse:
sudo zypper install xz

# Extract tar.xz using the
tar -xf backup.tar.xz

# To decompress filename.tar.xz file run:
xz -d -v filename.tar.xz