Open formats are file types that are publicly available and can be used by anyone without restrictions. They are designed to be easily accessible and interoperable across different software and platforms. This means that users can share and edit files without worrying about compatibility issues, promoting collaboration and innovation. Examples of open formats include HTML for web pages, CSV for data, and PDF/A for archiving documents. These formats are often supported by various applications, ensuring that users can access their content regardless of the tools they use. Open formats help preserve information over time and encourage the use of free and open-source software.