ONLYOFFICE

ONLYOFFICE Docs is an open-source office suite that replaces Microsoft Word, Excel and PowerPoint — with a near-identical user interface and full compatibility with DOCX, XLSX and PPTX formats.

What does ONLYOFFICE replace?

Key advantages

Full MS format compatibility

ONLYOFFICE reads and writes DOCX, XLSX and PPTX without conversion losses. Documents created in Microsoft Office open and edit identically in ONLYOFFICE — and vice versa. Collaboration with external Microsoft users is fully preserved.

Familiar interface

The ribbon-based UI is deliberately modelled after Microsoft Office. In practice, employees typically need only 2–3 days to adjust — significantly less than with LibreOffice.

Nextcloud integration

ONLYOFFICE runs directly inside Nextcloud: files open with a single click in the browser, multiple users can edit the same document simultaneously (real-time collaboration), and changes are saved automatically.

Desktop app available

In addition to browser use, a native desktop application is available for Windows, macOS and Linux — ideal for offline work or resource-intensive spreadsheets.

Integration with Nextcloud

# ONLYOFFICE Community Document Server via Docker
docker run -i -t -d -p 80:80 onlyoffice/documentserver

We set up ONLYOFFICE as a Nextcloud app so all files in Nextcloud can be edited directly in the browser. The Document Server runs on the same or a separate Hetzner server.

System requirements (Document Server)

Migration from Microsoft Office

1. Install ONLYOFFICE Document Server and connect it to Nextcloud
2. Migrate existing Office documents to Nextcloud (via OneDrive export or direct upload)
3. Cancel Microsoft Office licenses
4. Employee training (90 minutes is enough for basic usage)
5. Install the desktop app on Linux workstations

Tip: For users who rely on macro-heavy Excel files, we recommend a separate compatibility test before the full migration.

Next: Ubuntu Linux →