How would XML export work?

[kinook]

These are stored in the Windows registry under

HKEY_CURRENT_USER\SOFTWARE\Kinook Software\Ultra Recall\Settings\ExportDlg\Sets

Export is to files only. There isn't much standardization of formats that would be useful for clipboard export, and a lot of work to support it for each export type. If there is a meaningful clipboard format, it is probably available by copying from within UR.