I have LINUX CINNAMON + Libre Office for LINUX disk - how do I install?

Disk does NOT have an “install.exe” routine on it

What is Linux Cinnamon? (May be you mean Linux Mint or some other Linux distribution using Cinnamon Desktop Manager.)
Why do you tag your questions base (this tag is reserved for questions related to the database module of LibreOffice, which is called Base)?
And finally, don’t tell us, what your disk doesn’t have, but tell us what it has (since you have Linux now, you should get familiar with the installation method of your special distribution, which may be any of apt, dnf, zypper, pacman, yum, rpm, dpkg, to name a few of them out there - but as long as we don’t know your distribution, no advice could be given)