When you open a Photoshop file, the program looks for an XMP file associated with it. An XMP file is a XML-based format that Photoshop uses to store information about the document, such as the document’s dimensions and colors. Photoshop creates an XMP file when you first open the document and whenever you make any changes to it. The XMP file contains information about the document’s layout, fonts, images, and other properties. You can use this information to restore the original layout of the document if necessary or to export it in a different format. ..
