How can I convert my manuscript to RTF?

Most modern word processors can save documents in rich text format using a feature called "Save As" or something similar.

In most cases, you will do something like this:

1. Select File, Save As
2. Look for a field or a pull-down labeled something like "Save File as Type". (On Windows and Macintosh software, it's usually toward the bottom of the Save As dialog.) Select "Rich Text Format" or "RTF".
3. Save the file. You should keep a copy of the file that you send to us, for reference, so put it somewhere you can remember. 

Consult the Help system for your own word processing software for further assistance.