Document formats refer to the specific ways in which information is organized and stored in a file. Common formats include PDF, Word, and Excel, each designed for different purposes. For example, PDF files are great for sharing documents that look the same on any device, while Word files are ideal for editing text. Different formats also support various features, such as images, tables, and hyperlinks. Choosing the right document format is important for ensuring that your content is accessible and easy to use. Understanding these formats can help you communicate more effectively in both personal and professional settings.