infopath to xml conversion & then xml to html

So there are three things you are doing:

1. reading the infopath template
2. convert them to XML, format, write it out and read it back in
3. create an .html

That seems to be three relatively independent things (tasks). It would help to ask about each one separately in independent threads (questions). Also it would help if you look for relevantg articles in this web site, then if you have questions, ask specific questions.

You say you are "getting problem". Perhaps if you explained that problem, you will get help. As you can see, people that like to volunteer their time to help others are reluctant to answer very general questions that require a lot of time to answer and we can't help if a problem is vage as in "getting problem".