Hi @vgabler,
As was mentioned, dar is just a zip archive, thus can be unpacked as usual.
Texture Plugin accepts only files in JATS XML format, it produces dar internally but can’t give it as an output or input. You wouldn’t need to transform it to dar to publish it as a galley.
Why do need dar file in the first place? E.g., for the journal, where I’m an editor the process of conversion, looks like docx file → DOCX Converter Plugin → jats xml file → Texture Plugin → JATS Parser Plugin for presenting the article on the front-end. The latter could be changed for the Lens Viewer Plugin. Also, if converting from DOCX meTypeset is also a good tool. but I’m not sure if its output is fully compatible with Texture.