The type of file format known as Rich Text Format (or RTF for short), was developed by Microsoft. Any word processing program can open and use this format, whether the file was created in that program or not. This allows someone using Microsoft Word to read a document created in WordPerfect, for example. Documents formatted using RFT are also compatible with any computer operating system, from Windows, to Mac to Linux, to name a few.

 Document doc = new Document("Converting Document.docx");
            doc.Save("Document.Doc2RtfSave Out.rtf");

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