What is a shtml file?
With server side includes (SSI) you direct the web server to process some information within the HTML page before it is sent to the browser. Usually this involves including the contents of one or more files into the HTML page. SSI must be enabled from the web server end to support it. SSI syntax is simple: . Some examples – demo.shtml. Inserts the file data.txt into the current HTML page. Show the current date. The format can be changed with the #config directive. Change the format of the current date to “Monday November 9, 2009” Show the modification date of the file index.html. SSI is not a replacement for CGI or JavaScript for creating dynamic web pages but it does provide an easy way to add some amount of dynamic content.