This article covers how to install 7-zip on Ubuntu 20.04 LTS Focal Fossa system. In fact, 7-Zip is an archive format that is widely used and gives a high compression rate.
How to Use 7Zip in Ubuntu Linux system ?
If you are on Ubuntu run the following commands:
$ sudo add-apt-repository universe
$ sudo apt update
After you have updated all your repositories run the following command to install 7Zip:
$ sudo apt install p7zip-full p7zip-rar