How to find the members (classes, interfaces) inside namespaces or dll files in C#?

Many times we need to explore the classes and their methods. So we can do this by using object explorer in Visual Studio.

If you are given a dll file, you can even explore the namespaces, classes, methods inside it using object browser.
As shown in below images, we can right click on any reference library (dll file) and then we can click on view in object browser.

As shown in below image, object browser is showing all namespaces, classes, interfaces, fields inside the reference library.

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