Writing a cover letter for a previous employer requires highlighting your existing knowledge, valuable skills, and showcasing how you've grown since leaving. Learn about what a relocation cover letter is and how to write one, including a template and example.We'll tell you why you might be asked to reapply for your current job and how you can succeed. Plus we've provided some sample cover letters to use. Look through these sample cover letters to get an idea of what to include in your letter. Do not copy them directly! Example: "Hello, I'm a former employer of ABC and I'm very interested in the job of production manager that you have advertised. Look through these sample cover letters to get an idea of what to include in your letter. Do not copy them directly! "I'm very enthusiastic about the possibility of returning to ABC.