Lua is a lightweight programming language used in tons of games, like World of Warcraft and Warframe. It's super popular among game devs because it's easy to use and really flexible. But, to open and edit Lua files, you'll need a code editor or an IDE (Integrated Development Environment).
Some popular programs for opening Lua files include Notepad++, Sublime Text, and ZeroBrane Studio. These programs will let you read, edit, and even run your Lua scripts. And, if you're feeling adventurous, you can even try out some online Lua editors like Repl.it or IDEOne.
