How To Write A Proper Absent Note . Ensure it is in a few words, at most eight, underlined, or bolded. This is the most basic reason to write the excuse letter. Sample Absent Letter To Teacher Database Letter Template Collection from simpleartifact.com Please excuse (name) for being absent from school yesterday because (she/he) was ill due to a stomach ache. Include an inside address, also known as a recipient address. Williams, please accept this letter as my formal excuse for absence from work.