Without specific information on what "ajb nippyfile" refers to, it's difficult to provide a direct solution. If it's a:
If the main image is too corrupted to save, the file might still contain a tiny "thumbnail" or "preview" version of the original photo. Use a tool like
Delete the rogue ASCII characters. Select the bytes representing “AJB” or “NippyFile” and press Delete. Ensure the file now begins with FF D8 . Save the file as repaired.jpg .