Well, here I am again... At this point, I could consider this subforum my home.

The problem is simple: I was working on a surface with Wilbur, I saved it as an mdr file. I could open it. Then I did other things. When I was exiting the program, it prompted me to save it again. Well, why not? I did it. Then, when I wanted to open it again:

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It seems that the file is corrupted, I don't know why. In a desperate attempt to save it, I ran Recuva (a program to recover deleted-overwritten files) to no avail. However, it is curious that Recuva can give me a preview of the file, which means it isn't corrupted at all!

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I know that I can't open it on Wilbur. But is there any other software I can use to open mdr files and export it? Any help would be greatly appreciated.