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w3schools.com
https://www.w3schools.com/xml/
XML Tutorial - W3Schools
Learn XML XML stands for eXtensible Markup Language. XML was designed to store and transport data. XML was designed to be both human- and machine-readable.
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wikipedia.org
https://en.wikipedia.org/wiki/Xml
XML - Wikipedia
Extensible Markup Language (XML) is a markup language and file format for storing, transmitting, and reconstructing data. It defines a set of rules for encoding documents in a format that is both human-readable and machine-readable.
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howtogeek.com
https://www.howtogeek.com/357092/what-is-an-xml-fi…
What Is An XML File (And How Do I Open One)? - How-To Geek
XML is a markup language used to encode documents that can be read by both humans and machines. It uses custom tags to describe the structure and features of the document. XML is different from HTML because it allows users to create their own markup symbols, making it extensible and self-defining.
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mozilla.org
https://developer.mozilla.org/en-US/docs/Web/XML/G…
XML introduction - MDN
XML (Extensible Markup Language) is a markup language similar to HTML, but without predefined tags to use. Instead, you define your own tags designed specifically for your needs. This is a powerful way to store data in a format that can be stored, searched, and shared.
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onlineviewer.net
https://xml.onlineviewer.net/
XML Online Viewer
XML Online Vieweris a fast and simple XML viewer, formatter, minifier and editor. It offers an easy way to view, edit, format and minify a XML text.
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geeksforgeeks.org
https://www.geeksforgeeks.org/html/xml-tutorial/
XML Tutorial - GeeksforGeeks
XML, or Extensible Markup Language, is a way to structure and organize information in a text format that is easy for computers to read. It uses tags, similar to those in HTML, to define different types of data inside a document.
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w3.org
https://www.w3.org/XML/
Extensible Markup Language (XML)
Extensible Markup Language (XML) is a simple, very flexible text format derived from SGML (ISO 8879). Originally designed to meet the challenges of large-scale electronic publishing, XML is also playing an increasingly important role in the exchange of a wide variety of data on the Web and elsewhere.
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xmlvalidation.com
https://www.xmlvalidation.com/
Validate XML files
Validate an XML file XML (eXtensible Markup Language) is a versatile format for data representation. Ensuring your XML documents are well-formed and valid is crucial for data integrity and system interoperability. Use our tool to quickly validate your XML files against standard syntax or custom schemas. Read here how to validate your XML files (including referenced DTDs) online with just a few ...
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codecademy.com
https://www.codecademy.com/resources/blog/what-is-…
What is XML? Complete Guide for Beginners 2025 - Codecademy
So, what exactly is XML? Let’s look at what XML is, why it’s useful, and what exactly it’s used for. What is XML and why should you know it? XML (eXtensible Markup Language) is a markup language designed to store and transport data in a structured, readable format for both humans and machines.
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freeformatter.com
https://www.freeformatter.com/xml-formatter.html
Free Online XML Formatter - FreeFormatter.com
This free online XML formatter and lets you chose your indentation level and also lets you export to file