Text Heading not Appearing in Word with <H1>

sharad

Hello,
In BIRT report designer, I am marking certain text as Heading1 using the <H1> tag in the 'Edit Text Item'. But when I generate Word report out of this report document, the text appears as normal text and not as a Heading.

Any idea on where to set certain text as Heading in the report designer?

Regards,
Sharad