XT Question: getting the transformation results as a string

My understanding of James Clark's xt is that it outputs the results of a
transformation
to a disk file.  Is there a method that returns the transformation as a
string or a byte array?
If not, what class or classes shoud I look at to change how the results are
output?

I'm sorry if this has been discussed before, but searching the xsl-list
archives didn't turn up anything.

Thanks,

James


 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list