Learn how to write a resignation letter (and what not to include) and then use our example letters as a guide. Please accept this message as my formal notice of resignation.I am fortunate to have received a long awaited opportunity that I cannot pass up. Use one of our resignation letter templates. Learn how to write a short notice resignation letter with this stepbystep guide, template and examples of formal resignation. The appraisal was a critical component in the report, which took more than two years to complete.