ONLYOFFICE Desktop Editors (opens in new tab)

ONLYOFFICE Desktop Editors is a free and open-source office suite pack that comprises editors for text documents, spreadsheets, presentations, PDFs and PDF forms, along with a Diagram Viewer. It allows you to create, view and edit office docs stored on your Windows/Linux PC or Mac without an Internet connection. The suite is fully compatible with Office Open XML formats: .docx, .xlsx, .pptx. Thanks to the tab-based user interface, you can deal with multiple files within one and the same windo...