Why are XML files used?

Related questions

1. What is XML DTD explain?
2. What is well formed and valid XML document?
3. What is the difference between well formed XML and valid XML?
4. Why is XML used for document standards?
5. What is the requirement of XML schema?
6. What is XML schema file?
7. What is a valid document in XML?
8. What language is used for defining XML schema?
9. What is XML document structure?
10. What is XML Schema instance?

Tags

1. #create
2. #extensible
3. #world
4. #elsewhere
5. #markup
6. #standard
7. #ascii
8. #similar
9. #formats
10. #extension
11. #intranets
12. #language
13. #share
14. #format
15. #common
16. #information
17. #using