C:\Users<username>\Documents\My Received Files<username>\History for Windows Vista, 7, or 8. C:\Documents and Settings<username>\My Documents\My Received Files<username>\History for Windows XP.
XML (Extensible Markup Language) files are a format for text data. Like HTML, they can be read with a web browser, but the format is more flexible with how the data can be applied between applications. They can also be opened in a text editor, but the data will likely read more smoothly from a web browser.
