You need some information about XML.
You want ot know what XML is.
In simple words XML is a textual data format for the encoding of electronic documents. It supports the languages of the world (via Unicode). It is often used for the presentation of user-defined data structures in web services.
In addition XML has become the default file format for most office-productivity tools, including Microsoft Office, OpenOffice.org and Apple's iWork.
About the Author
Wim Peeters is electronics engineer with an additional master in IT and over 30 years of experience including time spent in support, development, consulting, training and database administration. Wim has worked with SQL Server since version 6.5. He has developed in C/C++, Java and C# on Windows and Linux in different European countries and different European languages. He writes knowledge base articles to solve IT problems and publishes them on the Lubby Knowledge Platform where he is one of the most important contributors and the main developer.