Photoshop CC 2015 won't open my PSD-file, it says: Could not complete your request because an unexpected end-of-file was encountered.
Previously my Photoshop did open the very same file and now it can't open it. Why???
Because the file is damaged in some way.
There are some PSD recovery utilities on the web (stick to the free ones) that might recover something -- but most of the time the file is too damaged to be read in any way.