DPL file format description

Many people share .dpl files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .dpl file can be edited, converted or printed with. On this page, we try to provide assistance for handling .dpl files.

3 filename extension(s) found in our database.

.dpl - Delphi Package Library

The DPL development files are related to Embarcadero Delphi. The DPL file is a Delphi Package Library. DPL file is a Windows DLL with Delphi-specific features integrated into it.

Embarcadero Delphi
Development files
- / -
Delphi Package Library related extensions:
TRANSFER Cobol Source Code
Applix Builder Shelf Macro
BabuHTML Embedded Software
C4 Engine XML Model Data
OpenCL Kernel

.dpl - Digital Photo Librarian database

The DPL data files are related to Digital Photo Librarian. The DPL file is a Digital Photo Librarian Database. Digital Photo Librarian is digital photo database tool for Microsoft Windows.

Digital Photo Librarian
Data files
- / -
Digital Photo Librarian database related extensions:
EyeBatch Command Script
Aladdin Interactive DSP Model
Korg Kontrol Editor Nanopad2 Set
Korg Kontrol Editor Nanokey Data
WellFlo Binary Data
Glass Eye 2000 Data

.dpl - WinDev Duplicate Data

The DPL development files are related to WinDev. The DPL file is a WinDev Duplicate Data. WinDev is an integrated development environment (IDE) fourth generation language (4GL), first published by PC SOFT in 1993, which is based upon a run-time engine (framework). It uses a 4GL known as WLanguage.

Development files
- / -
WinDev Duplicate Data related extensions:
WinDev Dependency Data
WinDev Environment Data
WinDev Error Message
WinDev HyperFileSQL Database
WinDev HyperFileSQL Full-text Index
WinDev Skin Template

Naturally, other applications may also use the .dpl file extension. Even harmful programs can create .dpl files. Be especially cautious with .dpl files coming from an unknown source!

Can't open a .dpl file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .dpl file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

cpl, dl, dll, dlp, dol, dp, dp1, dpi, dpk, dpm, dpo, dpp, epl, fpl, pdl

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

mToolkit Deployment Package
Eltron Programming Language Document
X-Plane Plug-in
Microsoft DirectMusic Producer Audio
Policy Description Language File
Control Panel Item

Operating systems

DataTypes.net currently supports the following operating systems:

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

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DataTypes.net >> DPL file