.NET Reflector was the first CLI assembly browser.[citation needed] It can be used to inspect, navigate, search, analyze, and browse the contents of a CLI component such as an assembly and translates the binary information to a human-readable form. By default Reflector allows decompilation of CLI assemblies into C#, Visual Basic .NET, Common Intermediate Language and F# (alpha version). Reflector also includes a "Call Tree" that can be used to drill down into intermediate language methods to see what other methods they call. It will show the metadata, resources and XML documentation. .NET Reflector can be used by .NET developers to understand the inner workings of code libraries, to show the differences between two versions of the same assembly, and how the various parts of a CLI application interact with each other. There are a large number of add-ins for Reflector.