.XMP File Extension

Contains metadata that describes a file, such as an image, database, or Web document; may include a file description, title, keywords, author and copyright data, and other information; saved in a standard format that can be searched by XMP-compatible applications.

The XMP (Extensible Metadata Platform) format was developed by Adobe as a means to standardize metadata across multiple file types. It is often used for organizing large numbers of files into a searchable database. XMP data is supported by Adobe software and various third-party programs.