What’s an XML profile? An XML profile is the set of body measurement data stored in the indusry standard XML format. It enables the enduser, a dressmaker, to save a subject’s data in a simple-to-understand and simple-to-edit format. My Sloper can load a valid XML file in the .xml extension and stores profile data for later selection. An XML file can be edited using Microsoft Notepad or any text editor and saved in the .xml extension.