Word  creates a variety of temporary files (see
http://www.gmayor.com/what_to_do_when_word_crashes.htm ) though the naming
syntax is not as you describe - however this naming structure may be a
function of a non-English version if that applies in your case.

The working files are essential and cannot be deleted or prevented. You
should only be concerned if they are not removed automatically when Word
(and Outlook) are closed.

To: LinLin,

Have you opened it up and taken a look? Can't hurt to just look. Chances are
that it is a left over temp file from Word or perhaps a left over compressed
file from some other application. But if the extension is .doc, then it
should be some sort of a document file. Take a look and if there is anything
of importance in it, that should give you some idea where it came from, and
if there is nothing of importance in it, or if you can't read whats in it,
delete it. Since if it was an important program file, it wouldn't be in a
document folder. Your document folder is for documents.

Steven Craig Miller