We have reviewed ten of the best proposal templates we could find online across various industries. These proposals showcase multiple proposal formats.Learn how to write a business proposal in simple 10 steps. Based on our research and analysis of over 1.8 million proposals. What Is a Business Proposal? Please complete, date and sign this form and place it as the first page of your proposal. This free project proposal template for Word will provide you with everything you need to write an excellent project proposal. A proposal letter isn't just a summary of your full proposal. It's a persuasive introductory document meant to intrigue a reader enough to find out more. We'll outline basic formatting techniques that can be used thoughtfully and strategically to strengthen your proposal.