I was editing huge .psd file in Adobe Photoshop CS6. Unfortunately, one of my programs hung and provoked hanging of Photoshop. When I tried to opened my .psd again, I got: Could not complete your request because the file-format module cannot parse the file. I got such error, and now I wait a decision related recovery toolbox photoshop.
In this scenario, it means that Photoshop is unable to read the file as the file is corrupt or irretrievably damaged.
You can try recovering the file if you have a backup or you can check this link and try the steps mentioned and let us know if it helps Invalid JPEG Marker error when opening images in Adobe Photoshop