Plutext

I have converted xhtml to docx with the below code,
wordMLPackage.getMainDocumentPart().addAltChunk(AltChunkType.Xhtml, filestring.getBytes());
The conversion have been done. But my mathml have not converted to OOML. Please help me out where i have done wrong.
Here by i have attached Output docx file which contains mathml as normal text.

Hello Raki,

you probably won't see this message, but never the less I ask, did you maybe manage to create proper export?

Best