Following the recent change in A-level grading after A-Level results day, you may need to import a new results file.
You'll first need to go to Students > Examinations > Results > Results Import to remove the old results file.
Click on the old results file.
Click the Reverse results import button at the bottom on the page to remove the old file.
Once you confirm the deletion you'll be taken back to the Results Import page where you can reimport the corrected file.
Click +Add to select your new results file. You must have already removed the old results file to be able to import the new one.