I used this very useful site: http://filext.com/

And if you do a Goodle search for "sdc file extension"
then there are lots of hits on the first page for
StarOffice/StarCalc which is just another name (the old
name) for Open Office...

AlexL
-----Original Message-----

AlexL is probably right. I don't use OpenOffice so I've
never seen its
extensions -- but it seems odd that a Google search
for "sdc file" didn't
turn up a single mention of OpenOffice in the first 50
hits.

--
Regards,
Jay Freedman
Microsoft Word MVP FAQ: http://word.mvps.org