Previously, exporting leagues only worked for small leagues. After you played a couple hundred seasons, it no longer worked unless you deleted some historical data. A similar problem existed for importing large league files, although that was probably not noticed much due to the issue with exporting. That's why there have been no updates the past couple weeks - I have been trying to fix all these import/export issues. It's actually pretty tricky, because it requires rewriting a lot of my code...
