Fix corrupted adv.dupe save?

[Christoffer]

I made a mistake when I made a small airplane of mine, and didn't try out the adv. dupe save to see if it worked. So I broke my plane, and was about to load up a new one, and found the save being corrupted somehow.
Is there something, or could someone fix this save for me? I got it perfect, and it will be damn hard for me to get it like that again.

[Kyzer]

You will rebuild your plane faster than trying to fix the dup file ^^

[Christoffer]

Well, I think I know the reason why it corrupted, I used these.. What are they called.. Lines that follows a prop wherever it goes, like a fading smoke line (which I used), or a line which says LOLOLOLOLOLOL or whatever..
Can adv. dupe work with this? How can I remove it out of the file?

Edit: By the way, isn't there a program that can fix these problems?