If you cannot open the file directly, you can try the following:
: If the "paper" contains important text you need to edit, you can use a JPG to Word converter with OCR (Optical Character Recognition) to turn the image back into a text document.
Exchangeable image file format, or EXIF, is data contained within a JPEG file that provides extra information to the user such as:
Exchangeable image file format, or EXIF, is data contained within a JPEG file that provides extra information to the user such as: Everything you need to know about JPEG files - Adobe
: You can check the EXIF data (right-click > Properties > Details on Windows) to see the "Date Created" or "Camera Model," which might help you remember what the document was.
Because this filename is a unique system-generated ID rather than a descriptive name, identifying the specific "useful paper" content without viewing the image depends on where you found it:
: Some backup tools and cloud services rename files to unique IDs for database management. How to View the "Useful Paper"