how to install comodo antivirus in debian antix 16.1

Managed to install COMODO antivirus in mint 18.1 but getting error message in antix 16.1.
No run action specified for files of this type.
changed directory to Downloads in terminal and entered command
sudo apt-get install cav-linux_x86.deb
received message
unable to locate package and
couldnt find any package by regex
under bash tried
but got no such file or directory.

Anybody help with a fix for this please?