There are various ways and programs for converting text files in RTF documents. One of the most convenient is the free online TXT to RTF converter.
• Free online converter supports the following document formats:
DOCX, HTML, ODT, PDF, RTF, TXT
• In addition to converting TXT to RTF, you can convert TXT files to the following formats:
TXT-DOCX, TXT-HTML, TXT-ODT, TXT-PDF, TXT-RTF
• The file converter also allows you to convert RTF files to the following formats:
RTF-DOCX, RTF-HTML, RTF-ODT, RTF-PDF, RTF-TXT