This article explains what a XAML file is, how to open it on your computer, and how to convert it to another format.
XAML: What are XAML Files in UiPath | XAML Full Form
A file with the file extension XAML (pronounced "zammel") is an Extensible Application Markup Language file, created using Microsoft's markup language of the same name.
XAML is an XML-based language, so XAML files are essentially just text files. Similar to how HTML files are used to display web pages, XAML files describe user interface elements in software applications for Windows Phone apps, Microsoft Store apps, and more.
Although XAML content can be represented in other languages, such as C#, XAML does not need to be compiled because it is XML-based. This makes it easier for developers to work with.