Collabora Online is a powerful LibreOffice-based online office that supports all major document, spreadsheet and presentation file formats, which you can integrate into your own infrastructure. ### Features - View and edit text documents, spreadsheets, presentations & more - Collaborative editing features - Works in any modern browser – no plugin needed - Preservation of layout and formatting of documents - text documents (odt, docx, doc…) - spreadsheets (ods, xlsx, xls…) - presentations (odp, pptx, ppt…)