All-time win-loss records for all 32 active NFL franchises

What are the overall win-loss records for all 32 NFL franchises that are currently active?

Dallas Cowboys

 Brian Bahr /Allsport

This is one of the most impressive marks for any team. Remember, the Cowboys started out in 1960 and went through the trials of an expansion team. They also had another sorry run before the great Super Bowl runs of the Troy Aikman teams. The overall mark is 520-388-6. The post season mark is 35-28 with 33 playoff appearances.