The ColdFusion Server application runs on the web server and has access to a database. ColdFusion files on the web server are HTML pages with additional ColdFusion commands to query or update the database, written in CFML. When the page is requested by the user, the web server passes the page to the Cold Fusion application, which executes the CFML commands, places the results of the CFML commands in the HTML file, and returns the page to the web server. The page returned to the web server is now an ordinary HTML file, and it is sent to the user.
Examples of ColdFusion applications include order entry, event registration, catalogue search, directories, calendars, and interactive training. ColdFusion applications are robust because all database interactions are encapsulated in a single industrial-strength CGI script. The formatting and presentation can be modified and revised at any time (as opposed to having to edit and recompile source code).
The filename extension for ColdFusion files is .cfm