XML Format

XML is plain text with tags to mark up the contents

    <person>
        Tom Gedeon
    </person>

(Tags must match, but names can be user chosen.)

    <person>
        <personal_name>Tom</personal_name>
        <family_name>Gedeon</family_name>
        <phone_extension>51052</phone_extension>
    </person>

(No white space in the tag names.)