Include pieces of code in an HTML file

Hi..
i am working on a project which requires to open a word document and display its contents on a rich textbox control in a C# form..
is there any way to achieve this?
 
is it possible to save doc file in html so that the formatting is preserved?
 
is there a tag in html which enables us to include doc file in html (for example <image> tag helps include image)?
 
please advise..
thanks

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