This conversion represents transformation of document formats saved in various Open Document formats between each other. Your best option for such conversion is to use some of the open source productivity tools based on OpenDocument schemes, for example LibreOffice Writer.
Convert OpenOffice.org text document to Open Document Interchange Format (ODIF).
We found 3 software records in the database related to .sdw to .odf file format conversion.
Microsoft Windows software - convert sdw to odf on Windows
Older multi-platform office productivity suite
Convert from sdw file format
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned sdw to odf. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
Apple macOS / Mac OS X software - convert sdw to odf on OS X
A full-featured set of office applications for Mac OS X
Multiplatform software - convert sdw to odf on any platform
Full-featured word processing and desktop publishing tool from LibreOffice suite