Extensible Metadata Platform is an ISO standard. It is used to create processes and interchange standardized and custom metadata for digital documents and data sets. XMP delivers guidelines for embedding XMP information into popular image, video and document file formats. In a sidecar file, metadata can be alternatively be stored. XMP toolkit can be found in png, zip, gif, jpg, mp4, wav, etc. It is useful for recording the history of a resource as it passes through multiple processing steps by using XMP.