ONLYOFFICE Docs is an open-source office suite that comprises online viewers and collaborative editors for text documents, spreadsheets, presentations, fillable forms, and PDF files. The core format is OOXML, and the editors are compatible with DOCX, XLSX, and PPTX. The suite is intended for integration with various cloud services such as CMS frameworks (WordPress, Strapi, Drupal), e-learning solutions (Moodle, Chamilo, HumHub), collaboration platforms (ONLYOFFICE Workspace, [Nextcloud](https://......