What is an aml file and how do I open an aml file?

Microsoft Windows Vista online help documentation materials are collated into an HTML document through the processing and formatting specifications integrated by a command line compiler application built into the Microsoft Windows Vista system, and this command line compiler uses the Microsoft Windows Vista online help compiler to process and collate these Microsoft online help documentation materials. A Microsoft Windows Vista online help compiler file is integrated with binary, text and XML-based formatting standards and implemented with data encoding specifications that allow the Microsoft Windows Vista system to store its content in the AML file format. A Microsoft Windows Vista online help compiler file is appended with the .aml extension.