What is an RB File?
A .RB file contains source code for software written in Ruby, which is an object-oriented programming language. Since the language is in plain text, a .RB file can be created and edited using any text editor.
There are different versions of the Ruby language available, known as “Gems.” Some of these Gems include “Ruby on Rails,” “Mongrel,” and “Capistrano.”
Download RB Sample Files
Here you can download .RB sample files which are available in different sizes for you to test out.