Reporting : Generating diagrams and definitions to HTML : Using the HTML Reports tool : HTML Generator templates
  
HTML Generator templates
The HTML Generator ships with a sample template. You can modify the sample template for your purposes or you can create a new template. The template uses two types of files: HTM files, which are constant files and are copied to the Publish Path, and INC files, which are blueprint files used to create the variable parts of the website.
The template has two roles:
1 to provide a blueprint for the generated variable HTML parts
2 to provide a place to store all constant parts of the website.
See also
Variable pages
Constant pages
Using the HTML Reports tool