XML (Extensible Markup Language) is a language used to store and transport data in a structured format. It defines the data with tags but doesn’t enforce rules on how the data should be structured.
XSD (XML Schema Definition), on the other hand, is used to define the structure, data types, and rules for an XML document. It acts like a blueprint, specifying what elements and attributes are allowed, their types, and their relationships. While XML contains the data, XSD ensures that the data in the XML file is valid and follows a specific structure.