To understand the composition of an Office XML Formats file, you might want to extract a file. To open the file, it is assumed that you have a ZIP application, such as WinZip from WinZip Computing Corporation, installed on your computer.
https://msdn.microsoft.com/en-us/library/aa338205(v=office.12).aspx
XML Format Files (SQL Server) SQL Server 2016 provides an XML schema that defines syntax for writing XML format files to use for bulk importing data into a SQL Server table. XML format files must adhere to this schema, which is defined in the XML Schema Definition Language (XSDL). XML format files are only supported when SQL Server tools are installed together with SQL Server Native Client. You can use an XML format file with a bcp command, BULK INSERT statement, or INSERT ...
https://docs.microsoft.com/en-us/sql/relational-databases/import-export/xml-format-files-sql-server
Introduction to the Office Open XML File Formats. Following the advent of XML in the 1990s, corporate computing customers began to realize the business value in adopting open formats and standardization in the computer products and applications that they relied on.
https://msdn.microsoft.com/en-us/library/aa338205(v=office.12).aspx
Updated November 09, 2016. A file with the XML file extension is an Extensible Markup Language file. XML files are plain text files that don't do anything in and of themselves except describe the transportation, structure, and storage of data. An RSS feed is one common example of an XML-based file.
https://www.lifewire.com/what-is-an-xml-file-2622560
XML Does Not Use Predefined Tags. The XML language has no predefined tags. The tags in the example above (like <to> and <from>) are not defined in any XML standard. These tags are invented by the author of the XML document.
https://www.w3schools.com/XML/xml_whatis.asp
Hundreds of document formats using XML syntax have been developed, including RSS, Atom, SOAP, SVG, and XHTML. XML-based formats have become the default for many office-productivity tools, including Microsoft Office (Office Open XML), OpenOffice.org and LibreOffice (OpenDocument), and Apple's iWork.
https://en.wikipedia.org/wiki/XML
XML and HTML were designed with different goals: 1  XML was designed to carry data - with focus on what data is. 2  HTML was designed to display data - with focus on how data looks. 3  XML tags are not predefined like HTML tags are.
https://www.w3schools.com/XML/xml_whatis.asp
The Difference Between XML and HTML. XML and HTML were designed with different goals: XML was designed to carry data - with focus on what data is. HTML was designed to display data - with focus on how data looks. XML tags are not predefined like HTML tags are.
https://www.w3schools.com/XML/xml_whatis.asp
In computing, Extensible Markup Language (XML) is a markup language that defines a set of rules for encoding documents in a format that is both human-readable and machine-readable. The W3C's XML 1.0 Specification and several other related specifications—all of them free open standards—define XML.
https://en.wikipedia.org/wiki/XML
Structure of the Office XML Formats. The new file format container is based on the simple and parts-based compressed ZIP file format specification. At the core of the new Office XML Formats is the use of XML reference schemas and a ZIP container.
https://msdn.microsoft.com/en-us/library/aa338205(v=office.12).aspx
what is a xml file
The Extensible Markup Language is a markup language that defines a set of rules for encoding documents in a format that is both human readable and machine readable. A Extensible Markup Language is a markup language that defines a set of rules for encoding documents in a format that is both human readable and machine readable.