Hello staff and enthusiasts of Krita,

I need your help. I can't access a certain .kra file that I worked on for days. Everytime I try I get this:

Could not open /home/theblackbaron/Pictures/Exercises/anatomy_study.kra
Reason: Not a valid Calligra file: /home/theblackbaron/Pictures/Exercises/anatomy_study.kra

This is a regular .kra file with lots of layers that I use for anatomy practice and I don't want to lose it. Any useful advice would be appreciated.

Well, I'm guessing here, of course:

* Check whether there's an autosave file around.
f you used file layers, for reference, for instance, and moved the files those layers refered to to another place, move those files back.
* If not, you can try to rescue the file with a zip repair tool. Kra files are plain zip files that contain among other things a mergedimage.png of the final image.