So sorry!
What you are asking is can you spot reduce - do something non-surgical that will work on a specific area of body fat - and the answer is no
The only thing you can do is lose weight slowly - to give the skin a chance to react and keep pace with change. Sometimes a rapid weigt loss can exaggerate the excess skin fold problem. But as Mel said this is a very individual thing, and you don't really have any control over it.
While you are doing the slow sensible thing you can oil, moisturise and exercise to keep the skin and muscles under it toned and supple. But that means all of your body. Just as the diet effects everything your exercise should do this too!
There is no form of exercise that can encourage your body to use fat from a specific part of the body - so doing lots of ab work
will tone the ab muscles, lengthening and strengthening them, giving you better posture and making you look good. But it
will not get rid of the fat around the ab muscles - well not uless that is where your body was intending to eat from anyway
When you have lost the weight and are a good maintainer then you might have to have surgery to remove the excess skin, or just buy those good old harvester knickers (you know 'all is safely gathered in') perhaps better known these days as 'Bridget Joneses'.