Installing desk top edition in Ubuntu 18.04 os

I am new to ubuntu and I am not a software professional also. But Inwould like to install in my ubuntu laptop. Can some body guide me?

Download the Manager for Linux file from the website.

In your file manager, find the file (it’s an appimage by the way), right-click on it and look at the permissions. If necessary, tick the box to make the file executable, or alternatively if you prefer doing it in the terminal then navigate to the directory where the appimage file is located and

chmod +x Manager-x86_64.AppImage

Then double-click on the appimage file and use Manager

Thank you very much. It worked.