tars are archives so the more appropriate term is to “extract” them instead of install. xz is a compression applied to the archive so it is also common to hear “decompress” too.
You can extract the compressed archive with the tar xvf <archive name>
command. If you’re not sure how to use a command you can read the manual with the man
command (e.g. man tar
).
Unfortunately, I can tell you Teamviewer is going to be problematic because it has a dependency on an older library that Clear Linux is not packaging due to known vulnerabilities. See Own to install Teamviewer in Clear Linux?