Several programs support RichView document format (.rvt) and allow the contents to be exported and saved as other, more common formats. This also goes for simple text format (.txt), but bear in mind that such file does not contain formatting and only plain text.
Convert RichView document file to Simple text file.
We have found one software suitable in our database for this conversion.
Microsoft Windows software - convert rvf to txt on Windows
Note organiser software
Convert from rvf file format
The table with program actions contains information about what each program is capable of doing with their files. This may be a good pointer for further searches for certain file conversions and help you find the converter you are looking for if our search result is insufficient for you. However, it is far from perfect and may sometimes show results which are not really usable because of the nature of the software handles the files. So a conversion that appears as possible, just because of matched actions, may in fact not be possible.