Free online office for Box Open and edit documents, spreadsheets, presentations, and PDFs within Box using integrated ONLYOFFICE Docs Cloud Get it now Fully compatible with docx, xlsx, and pptx Edit and co-author office documents within the Box interface Open and edit Office documents stored in your Box storage Co-author documents with multiple users in real time or paragraph-locking mode Open and edit Office documents stored in your Box storage Co-author documents with multiple users in real time or paragraph-locking mode Designed for seamless integration with Box Get the ONLYOFFICE app for Box now from the Box App Center. Get started Why ONLYOFFICE? Working with office files directly within the Box frontend. Support for more than 50 file formats, fully compatible with MS Office formats: DOCX, XLSX, PPTX. A robust set of editing, formatting, and styling tools. Real-time and paragraph-locking co-editing, review, version history, document comparison, comments & chat. Audio and video calls. Free app available in the Box App Center. No additional configuration required. Get started How to start 1 Log into your Box account. 2 Go to the Box App Center. 3 Add the ONLYOFFICE app*. Check detailed instructions in Help Center. *The app uses the pre-configured tenant of ONLYOFFICE Docs Cloud and doesn't require any additional configuration. Need an app to connect ONLYOFFICE Docs to your favorite web service? Or have you developed one? Let us know Explore other connectors Developed by ONLYOFFICE Alfresco Chamilo Drupal HumHub Jira Liferay Mattermost Nuxeo Pipedrive Plone Redmine SharePoint Strapi SuiteCRM WordPress Zapier Zoom Provided by partners agorum CommuniGate enaio eXo Platform FlinkISO Jalios Liferay Maarch Courrier NEO ONE OpenOlat Pintexx PowerFolder Pydio Quasaro Seafile Talkspirit WebWeaver WeDoc XWiki FileCloud OpenKM