I use the export tracker in my OOTP6 league,
That 80's League. You need to have the latest exporter for use against OOTP6 so you can create the league and team.cvs files. Upload those two files to the same directory that you plan to put the lastexport.php file in. Just follow the directions for setting it up that come with the tool. Then create a link on your site to go to the lastexport.php file and you are set.
Contact me if you have any problems.
Dan
Baseball and Lord Lovers Commissioner
Legends of the Game Commissioner
That 80's League Commissioner