How do I install the :antivir-workstation-pers.tar.gz .I'm new and having difficulty.

stanleyb84 only my comment this on Linux viruses are not a problem...

Hth

You shouldn't install software from random websites because you can't trust them. How do you know they're not going to secretly install malware on your PC and make it send spam to other people?

You should only install software from the repositories. The software in the official repositories is trusted to be malware-free, and using a well known vendor's repository (eg. Google or Mozilla) is also OK. Using repositories also means your software will be automatically updated.

And as pointed out, you don't need antivirus software on Linux.

.tar.gz
The .tar.gz file extension indicates the file is a compressed set of files and folders (the compressed files you see in Windows usually have a .zip extension). If you see the .tar.gz, it could be compressed files that have a precompiled binary file, or it could be compressed files that have the source code allowing you to compile the application from source. In such case case
untar(unzip) the file and follow instructions given inside. This may help -
https://help.ubuntu.com/community/CompilingEasyHowTo

As said, antivirus software in general is not nec on ubuntu. and as said installing software outside the off. ubuntu software sources is rather riskie. Specific on antivir antivirus, it is a crime to install this software and workstation on linux, even for geeks :)

Also not need of antispyware or related tools if you install opensource software...!

Hth