免费开源 Office 办公软件 一定程度可替代WPS | Microsoft Office

FreeOffice, die beste kostenlose Alternative zu Microsoft Office (Word, Excel, PowerPoint) für Windows, Mac und Linux

Calligra Suite 是 KDE 社区开发的开源办公套件，专注于创意和生产力。它提供了独特的工具，如流程图设计和项目

The official home page of the Apache OpenOffice open source project, home of OpenOffice Writer, Calc, Impress, Draw and Base.

ONLYOFFICE offers a secure online office suite highly compatible with MS Office formats. Connect it to your web platform for document editing and collaboration or use as a part of ONLYOFFICE Workspace.

Free office suite – the evolution of OpenOffice. Compatible with Microsoft .doc, .docx, .xls, .xlsx, .ppt, .pptx. Updated regularly, community powered.