[users] How to open in Open Office, database files created in MS Works 4.5

[Geoff Coulson]

I am a completely new user of OpenOffice.org version 2.0  (it was pre-installed 
by the supplier of my new PC).
My problem is:-
    I have a few  data base files which I created (on the old PC)  with 
MicroSoft Works 4.5  (the file extension is *.wdb).
    I need to edit and save these files from time to time, but I have not been 
able to open them in OpenOffice.org Base.
    How can I pursuade OpenOffice to recognize these files, please?
                Thank you in anticipation of your help,      Geoff Coulson.