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About DPR Files

A .dpr file is a project that contains the main source code and project information for an application created with Delphi. DPR files act as the main source file for a Delphi application project. They reference the project's other source-code units and forms and store the code that initializes and starts the application.

Delphi introduced the DPR format as part of its development environment in the mid-1990s, when Borland promoted Delphi as a tool for building Windows applications with Object Pascal. Developers use DPR files to manage Delphi application projects and define how programs initialize and build. You may encounter .dpr files when maintaining Delphi applications, working with older Borland software projects, studying Object Pascal source code, or developing applications with a compatible Delphi environment.

Since .dpr files are generally stored as plain text, you can open and view their contents with a source code editor or plain text editor. However, to manage and build the associated application, you generally need Delphi or a compatible Object Pascal development environment.