The Advanced Authoring Format (AAF) is a professional-level, cross-platform file format designed for the exchange of digital media, metadata, and composition information between different software applications. It was developed by the Advanced Media Workflow Association (AMWA) to solve the interoperability issues common in professional film and television post-production environments. Unlike simple video containers, AAF files store complex project data, including edit decision lists (EDLs), audio and video tracks, transitions, effects, and color grading information. This allows editors to move a project from one non-linear editing system to another, such as from Avid Media Composer to DaVinci Resolve or Adobe Premiere Pro, while maintaining the integrity of the timeline and the associated media assets. Because it is an object-oriented format, it is highly extensible and supports both embedded media and linked media, making it an essential standard for archiving and professional media workflows where project portability is critical.