OnlyOffice download for Windows

ONLYOFFICE Desktop Editors is a desktop suite for text documents, spreadsheets, presentations, fillable forms, PDF files, and diagram viewing. Its tab-based interface keeps several files in one window, which is useful when a task moves between a brief, spreadsheet, and presentation. The official desktop page emphasizes common Microsoft Office and OpenDocument formats, including DOCX, XLSX, PPTX, ODT, ODS, and ODP; compatibility still needs a visual check when a document uses uncommon fonts, macros, or advanced layout.

Use the correct editor for the file

Open a document in the matching editor, make a small formatting change, and save a working copy before restructuring a complex file. The document editor includes styles, tables of contents, bookmarks, and mail merge; the spreadsheet editor provides formulas, named ranges, charts, equations, and macros; presentation editing includes presenter mode. The PDF editor can edit text and objects, annotate, manage pages, convert files, and create or fill PDF forms.

Collaboration is an optional connection

Desktop Editors can connect to compatible cloud platforms, including ONLYOFFICE services, Nextcloud, ownCloud, Seafile, Moodle, Liferay, and kDrive, for real-time co-editing, comments, review, and chat. A local file does not become collaborative automatically: select the intended connection, understand its account permissions, and confirm where the file is stored before inviting collaborators. The cloud service, rather than the desktop application alone, determines its access policies and retention.

Plugins and AI integrations

The desktop product provides a marketplace for extensions and offers optional connections to AI providers and external tools. Treat those as separate integrations: review their data handling and permissions before sending document content outside the local editor. Add plugins only when their role is clear, especially in a workflow with confidential or regulated documents.

Edition-specific licensing

This manifest identifies the open-source Desktop Editors code as AGPL-3.0. ONLYOFFICE also sells Enterprise Desktop Editors and server products with separate commercial terms. The license label must not be read as covering every ONLYOFFICE product or support offering; confirm the edition in use before compliance or procurement decisions.