Build and Run this scene only as a standalone

So, i don’t know how to Build and Run this scene only as a standalone. I’m new to the unity and i want to create game. In tutorial it says that. Can someone help me with this?

go to file, then build and run, there select whatever you want to build for, usually windows, mac, or web. If those options are not available you need to reinstall unity and choose to install those packages.