First things first.
I had some problems coming up with the formulas to make the 1st place teams play the other 1st place teams within the conference for the teams not scheduled to play that division; so I made my own format. However its pretty simple. I am currently working on how to make a text delimited file that will export the schedule you created by just doing these simple steps.
The Default tab within the workbook is the original by order of teams. Then I made a schedule based of the 2007-2009 seasons.
S01 = First Season Schedule
Se01St = First Season Standings
S02 = Second Season Schedule
Se02St = Second Season Standings
S03 = Third Season Schedule
Se03St = Third Season Standings
S04 = Fourth Season Schedule
By now you should see the pattern in which the teams play. I am using the current NFL format for schedules minus my own touch as mentioned above. Hope this helps, and feel free to make modifications and use it at your disposal.