virtualbox.org

I just downloaded virtualbox-5.2_5.2.12-122591~Ubuntu~xenial_amd64.deb to my Ubuntu MATE 16.04 machine. When I try to install it I get this error message:

Package: virtualbox-5.2

Error: Breaks existing package 'virtualbox-5.1' that
conflict: 'virtualbos'. But the 'home/rsteff/Downloads/
VirtualBox/
virtualbos-5.2_5.2.12-122591~Ubuntu~xenial_amd64.deb'
provides it via: 'virtualbox'

The Install Package button is grayed out. There is no indication of what to do next. Can someone tell me how to proceed?

Thanks.