OpenDocument Format (ODF)
ODF is the default format for LibreOffice/OpenOffice and some government mandates. ZIP envelope + XML payload pattern mirrors OOXML design.
What It Defines
Open office document suite: ZIP container (`mimetype` file first, uncompressed) holding XML parts — `content.xml`, `styles.xml`, `meta.xml`, manifest. Formats: `.odt` (text), `.ods` (spreadsheet), `.odp` (presentation). MIME types: `application/vnd.oasis.opendocument.*`.
Canonical (Normative)
Convenient (Practical)
Global nonprofit consortium that develops open standards for information exchange. Publishes MQTT, AMQP, SAML, and many other widely deployed protocols. Standards go through a formal TC (Technical Committee) process.
Related Specs
OOXML is the dominant enterprise document format. Every `.docx` is a ZIP you can unzip — knowing the part layout enables templating, mail-merge, and malware scanning.
ZIP is everywhere — downloads, backups, Java JARs, Office Open XML. Central-directory-at-end structure, path traversal (`../../`), and zip bombs are critical security concerns.
XML remains embedded in enterprise integrations, document formats, and legacy APIs. Namespaces, entity expansion (XXE), and DTD processing are security-critical in parsers.