MusicXML is a digital file format designed for representing musical notation. It allows composers, arrangers, and musicians to share sheet music across different software applications. By using XML (eXtensible Markup Language), MusicXML provides a standardized way to encode musical scores, making it easier to transfer and edit music digitally. This format supports a wide range of musical elements, including notes, dynamics, articulations, and lyrics. Many music notation programs, such as Finale and Sibelius, can import and export MusicXML files, facilitating collaboration and ensuring that musical compositions are accurately represented across various platforms.