Once you open the file, you will have to save it as a new file, and then choose a new text format that supports RICH Formatting. You can convert to a DOC file or OpenDocument Text format and so on.

How to Extract Text from an RTF File. RTF is short for Rich Text Format, a format created by Microsoft to allow documents to be read across different operating systems. This is useful if your ...

The Rich Text Format extension refers to a document-based file format used and recognized by prominent word processing applications.

To export InDesign document (INDD) in Word, you can convert InDesign file to PDF and then to Word, or export InDesign file as Rich text Format.