http://manuals.ootpdevelopments.com/...0&page=modding
On July 1, you can use the Export Schedule button to export the schedule of most playable leagues to a .csv file. The file will appear in your save's import_export folder (the same one used by other csv exports), and can be edited in any text editor. Once you've finished editing, the Import Schedule button will re-import your edited file and use that for the schedule for the upcoming season.
While there are no specific limits to how you edit the file, be aware that making significant changes to the starting and ending dates or any extended breaks may result in your schedule overlapping with events like All-Star games, International Tournaments, or Drafts.
here is the csv file used for this season, of course I used FHM9 at the time to import it