[Your Name]
[Your Address]
[City, State, Zip Code]
[Email Address]
[Phone Number]
[Date]

[Recipient Name]
[Recipient Title]
[Company Name/School Name]
[Company/School Address]
[City, State, Zip Code]

Dear [Recipient Name],

I am writing to formally notify you of my absence from [work/school] on [specific date(s)]. I was unable to attend due to [briefly explain the reason, such as a personal matter, family emergency, or other valid reason].

I apologize for any inconvenience my absence may have caused and want to assure you that I am taking steps to make up for the missed time. I have already [briefly mention what you have done to catch up, such as reviewing missed materials, completing assignments, etc.].

Please do not hesitate to contact me if you require further details or documentation regarding my absence. I appreciate your understanding and consideration.

Thank you.

Sincerely,
[Your Name]