File with a .DBM extension contains source code of a web site stored in the Database Markup Language – DBML. It is executed on the server’s side with the ColdFusion environment initiated, in result of which, the object code of the web site is being generated – send to the client in the HTML language.

DBM files are predecessors on newer technology developed by Adobe – CMF, in which the ColdFusion Markup Language is being used. DBM files were used up to the 5th version of ColdFusion and in order to be executed they require a running application. They are similar to the ASP or PHP files in term of functioning.