XML (Extensible Markup Language) data file that uses tags to define objects and object attributes; formatted much like an .HTML document, but uses custom tags to define objects and the data within each object; can be thought of as a text-based database.
XML files have become a standard way of storing and transferring data between programs and over the Internet. Because they are formatted as text documents, they can be edited by a basic text editor.
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.