Dear Professor,

I hope this message finds you well.

My name is Hyunjeong Suk, and I would like to sincerely apologize for submitting my final assignment in a Hangul file format.

I regret any inconvenience this may have caused.

I would like to request permission to resubmit the assignment in PDF format.

If possible, I would greatly appreciate the opportunity to upload the revised file.

Thank you for your understanding, and I apologize for any disruption this may have caused. Wishing you a wonderful day.

Best regards,
Hyunjeong Suk