If you want to process lidar data you can use LasTools. Let's get started on how to install and license it!
Go to https://rapidlasso.de/downloads/ and choose your installation of choice.
When you have installed the program you will have to get the license file. You can find it here:
\\gis.slu.se\gisprog\lasTools\license\
Copy the file and paste it in the LasTools\bin directory
Here you can see some tutorials to get started:
https://rapidlasso.de/rapislasso-tutorials/
Now you're ready. Happy processing!