In order for a web server in a default configuration to recognize an SSI-enabled HTML file and therefore carry out these instructions, the file usually must end with the .shtml, .stm or .shtm extension. (It is also possible to configure a web server to process files with extension .html, or really any extension with more modern web servers.)
<body> <!--#include file="menu.html" --> </body>
The file named "menu.html" is located in the same directory.
Also the folder "Adobe_Style_Menu" is located in the same directory.