RadEditor is a HTML/XHTML editor and it could load only HTML or plain text content. If you try to load directly MS Word document in RadEditor the content won't be HTML and it will be not rendered as expected. To be able to achieve your scenario you should use some MS libraries or DOCtoHTML / DOCXtoHTML third party libraries which will convert the Word data to HTML content which you can load through the Content server property of RadEditor. To save the content to a Word file you should again you some MS library / third party control which will convert the produced HTML content to Word format.
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