What is A Offer Letter? An offer letter is a written document that an employer sends to a job candidate to formally offer them a job.Thank you for providing me with this opportunity. I extend my gratitude to you for offering me the position of {Title} in {Company's name}. If you have an email address, please share it with us too. Can I fill out forms in a PDF file? Also, Harris County and City of Houston libraries offer computers with Internet access. If you have received a jury summons you must pre-register below.