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The XmlDocument class in .NET is designed to provide a simple and convenient way to represent, navigate, and manipulate XML documents. It encapsulates the structure of the XML document within an object model, enabling developers to easily access and manipulate the data using properties and methods.

When using XmlDocument, you can load an XML file into memory, and then traverse the XML tree structure using methods like SelectSingleNode or SelectNodes, which allow you to query nodes based on their path or attributes. This approach eliminates the complexity involved in handling raw XML strings and provides a clear way to work with the document structure.

Additionally, XmlDocument supports various operations such as adding, removing, or modifying nodes, which streamlines the process of working with XML. This capability makes it particularly advantageous for developers who need to read or manipulate XML data in a straightforward manner.