Thank you gentlemen, I'll check it out tomorrow.
The file I want to change is a freeware from Blue Sky Scenery. It's a small file that determines how far away the Los Angeles buildings (in his downtown LA photoreal scenery) will appear. There are three files to choose from and I picked the furthest but it's not far enough to suit. I wrote to the dev but what he puts out is all there is. Considering it's freeware I have no gripe. So all I want to do is open the bgl, change the distance, and close it. Shouldn't be too complicated I hope. The older I get the less complicated I like things.