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   ► KBTo/From GuidesCorel Paradox  Print This     

File Extensions (Corel Paradox and Delphi Cross Reference Guide)

By Mike Prestwood

Corel Paradox versus Delphi: A side by side comparison between Corel Paradox and Delphi.

Tool Basics

Developer environment basics such as common file extensions, common keyboard shortcuts, etc.

File Extensions

[Other Languages] 

Languages Focus

Common or primary file extensions used (not a complete list, just the basics).

Corel Paradox: 

Paradox for Windows has two primary file types: source files and delivered files:

Source Files
Source files in Paradox are binary but can can be opened in later versions of Paradox and even in earlier versions if you don't use any new features.

  • .FSL = Form
  • .RSL = Report
  • .SSL = Script
  • .LSL = Library

Since Paradox source files do not compile to an EXE, Paradox developers tend to use a startup form or script to start the application.


Common source code file extensions include:

  • .BDSPROJ - Project, Borland Developer Studio project file holds compiler options, etc. This is the file you open.
  • .DCU - Delphi Compiled Unit file.
  • .DFM - Delphi Win32 form file (a text resource file).
  • .DPR - Delphi project file. Primary project "source" file.
  • .PAS - Delphi unit source file.

Note: Delphi 2009 changed the project file to acommadatte new features. When you open a project file from a previous version, it will be upgraded. In addition to .bdsproj, D2009 also uses a .dproj project file.

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