If you need to convert your documents (.doc for example) to special OpenDocument Flat XML format (.fodt), your best option is to use some of the open source office productivity programs based on OpenDocument schema, for example LibreOffice or OpenOffice.org.
Convert Microsoft Word document (prior version 2007) to OpenDocument Flat XML document.
We have found 3 software records in our database eligible for .doc to .fodt file format conversion.
Apple macOS / Mac OS X software - convert doc to fodt on OS X
NeoOffice is an office productivity software for Mac OS X created as an alternative to OpenOffice.org. It has everything needed for common office including word processor, spreadsheet, presentation program, and graphics program.
Convert from doc file
to fodt file
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 doc to fodt. 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.
Multiplatform software - convert doc to fodt on any platform
Apache OpenOffice Writer (OpenOffice.org Writer) is a fully-featured and free word processor and text editor from OpenOffice.org productivity suite.
Apache OpenOffice Writer is simple enough for a quick memo, yet powerful enough to create complete books with contents, diagrams, indexes, etc. You're free to concentrate on your ideas while Writer makes them look great.
LibreOffice Write is a complete word processor and document publishing tool that supports a plethora of document formats and has many innovative features. It's an open source software that comes as an integral part of LibreOffice suite.