Document can´t save as daisy

Hi I previously worked i a big project that contains various mathml equations and is 595 pages long with windows xp and office 2010 everything work fine, but now that i want to finish it with another pc with windows 10 and office 2013 I simply can´t translate it with the" save as daisy add in", it says initializing but it never reach the box to sabe the file xml, please help me I really need to finish it, thanks

Is the document structured using headings? This problem has been noticed when the document does not have any or very few chapters and sub sections styled as heading 1/heading2 ...

Please check this and if it does not work out you can send me the document to have a look. My email id is pverma(at the rate)daisy.org.