What is .baml file?

Hi All, What is .baml file and what's the use of this file? Who creates this file?

From stackoverflow

• A compiled XAML file.

  Wikipedia says:

  A XAML file can be compiled into a .baml (Binary XAML) file, which may be inserted as a resource into a .NET Framework assembly. At run-time, the framework engine extracts the .baml file from assembly resources, parses it, and creates a corresponding WPF visual tree or workflow.

  Gordon Mackie JoanMiro : Key thing here is that it is essentially a compression technique - the XAML is still parsed and constructed by the runtime

• .baml = Binary Application Markup File, a compiled XAML file.