RTF (Rich Text Format).
Microsoft’s proprietary and constantly changing, format for exchange of
formatted text between word processors. In theory, Oracle’s RTFEditorKit is supposed to let you read RTF
documents, but it only supports a subset of Microsoft’s
and can even crash if you feed it RTF
features. You can read or create such files with MS Word or Open Office.
Oracle’s Javadoc on RTFEditorKit class : available: