I Cannot Open my Drawing File

[Anonymous]

So, I have been working on an extremely important drawing on Sketchbook, and after a month or two, I finally finished it. I went to export it, but since my computer isn't the best, I noticed my mouse cursor was missing. No big deal, if I restart my computer, the mouse comes back. Since I wanted to export my photo, I needed my cursor, so I saved using Ctrl S and restarted my computer. When I went back to my file and opened it, it said that it couldn't access the file. I'll provide a screenshot below. Normally I would have just started over and cut my losses, but this drawing was very important to me, and I would really like to get it back. Is there a way to retrieve my drawing, or is it lost in the void forever?

[david.lau]

Can you try using the DESKTOP version of SketchBook?

www.sketchbook.com/thankyou

Also, try using "Paint" or "Paint 3D" to open the file.  Those apps are default pre-installed Windows programs.