I recovered a lot of .blend files and images from an unintentionally formatted hard drive while upgrading to Windows 10, but almost none of them are being recognised as their file formats. PNGs have .png at the end of them and have "PNG" as their file type in properties, but won't open in paint, photo viewer or browser, because they aren't being identified as PNGs. I also can't try to repair them in case they're corrupted because none of the image recovery programs I've tried identify them as PNGs either, and they don't show up when I need to select them in the file explorer. My .blend files a