If you have hundreds of files like this, you can use "Bulk Rename Utility" tools to fix the extensions. If you verify they are all images, you can append .jpg to all of them at once to restore functionality.
If you have the or the file type associated with this ID, I can help you generate descriptive text, tags, or a layout based on that specific context. c3620a3jk8smz12226cimage
Are you trying to this specific file or extract information from a system where you found it? If you have hundreds of files like this,