.XML File Extension

An XML file is an XML (Extensible Markup Language) data file. It is formatted much like an .HTML document, but uses custom tags to define objects and the data within each object. XML files can be thought of as a text-based database.

XML file open in Microsoft XML Notepad

The XML format stores data in a structure that is machine-readable and human-readable. There are a large amount of programs that can open XML files. And since they are formatted as text documents, they can be viewed and edited by basic text editors.

XML files have become a standard way of storing and transferring data between programs and over the Internet. However, they can be used by many other types of programs. The XML syntax has been utilized in a large variety of file formats, such as Microsoft Office Open XML, LibreOffice OpenDocument, .XHTML, and .SVG.

Video project created and used by Cinelerra, a video editing software package for Linux; contains project data, which includes an edit decision list that records any edits made to the project; also stores project settings; does not contain media, instead it stores a path to each media file.

NOTE: There used to be two versions of Cinelerra, Heroine Virtual (HV) and Community Version (CV), and XML projects created by one version cannot be opened by the other version. However, Cinelerra is now offered as a single release.