In this article, we share the steps for writing an application letter along with a template and an example for you to use when writing your own. To write a good application letter in Nigeria, you must research, pay attention to details, and communicate well.Learn how to write a professional application letter in Nigeria with this sample and email template. Start with a header that contains your contact information. Greet the hiring manager warmly. Most employers do not bother with the covering letter. They only skim thru. This is a sample cover letter. Download the cover letter template (compatible with Google Docs and Word Online) or see below for an email sample. It all starts with finding your perfect fit.