DOCX is Microsoft Word OOXML document format. This command line showing multiple conversion from DOCX files into ODT files. This can be considered as Microsoft Word to LibreOffice Writer document conversion. We take some external DOCX files for several sources to show this command line.
soffice --headless --convert-to odt *.docx
Important note: close all LibreOffice windows before running this command, otherwise it won't work.
As the result sample, here is a resume template (left = DOCX, right = ODT):
We take those DOCX templates from several sources below: