How to convert .tmdx files directly to .doc format.
Directly converting TextMaker Documents to Microsoft Office Word format (.tmdx to .doc conversion) should be possible using the TextMaker utility, which supports common Microsoft Office formats.
Simply resave your .tmdx document as .doc format by selecting 'File -> Save as...'.
Support for the .tmdx file type is quite limited, and there might not be other options to convert .tmdx to .doc format.