Help using find command

[Rob Myroon]

Hi list,

I am trying to tar up all the openoffice files on my server using the 
find command. The command I have come up with only tars the last file 
found by the find command.

# find . -regex '.*\(odt\|ods\|sxc\)$' -exec cvzf 
/root/openofficefiles.tar.gz {} \;

Can someone tell me how to make this work? (I realize that there are 
more openoffice extensions.)

Thanks,

Rob