I've tried this extention in Open Office and I've got a strange result when I am exporting any small capitals.
I end up getting: <p>‘S\ko\k\km\k\ke\k\ko\k\kn\k\ke\k \ki\k\ks\k \kl\k\ko\k\ko\k\kk\k\ki\k\kn\k\kg\k for you, captain.’</p>
for the line: ‘Someone is looking for you, captain.’
"‘Someone is looking" is the part is small caps.
Are small caps working in this yet?