Objects written in existing savefiles will not be included in the text dump, because it doesn't currently support the old format. If that is a problem for anyone, let us know. You will be able to see almost all of the actual object data, but the reference to the object will be written as null.
If you happen to look at one of these files, you will notice funny directory names such as ".0", ".1", and so on. Those are hidden directories created internally to store object data. An hand-generated file could, of course, use nicer looking names.
usr << "<xmp>[file2text(txtfile)]</xmp>"