Problems with Pepakura

I have pepakura viewer and I don’t why it won’t accept lwo. and 3ds. files? It said on the site that it would. When I go to the folder my blender models are in, it doesn’t show up. I can’t change the file type. Is there a lwo. or 3ds. converter to pdo.?

Anyone? I really want to do pepakura for my model

Perhaps I’m misunderstanding you, but if you just have the viewer, it looks like that only shows files that are already converted. You need the Pepakura Designer to actually convert the files from 3D models.