Introduction to XML: Syntax and Validation

Welcome to an essential guide on XML: Syntax and Validation, a fundamental topic for anyone diving into data structuring and web technologies. XML, or eXtensible Markup Language, is a powerful tool for defining custom markup languages, making it incredibly versatile for data exchange and storage. This article will break down its origins, core syntax rules, and the crucial concept of validation, helping you understand how to write and verify XML documents correctly.