Today after working on some digital art for several hours using paint.NET, and since I know <snip> happens, I saved every 10th minute or so.
Then I closed it down for a second to work on another picture, but now when I try to open the first one, it says "there was an error opening the file"
For what I found out, it could have something to do with the picture expanding the pixel limit, but if so, shouldn't it had said so when I saved the picture?
What I really know is how I can open it, or if it is even possible.