开放文档格式（英语：OpenDocument Format，简称ODF），全称用于办公室应用程序的开放文档格式（Open Document Format for Office Applications），是一种规范， 基于XML的文件格式，因应电子表格、图表、简报和字处理文件等电子文件而设置。
Open Document Format, full name open document format for Office applications (open Document format for Office Applications), is a specification that XML-based file formats are set up in response to electronic files such as spreadsheets, charts, newsletters, and word processing files.
