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DCU file extension

The table below provides useful information about the .dcu file extension. It answers questions such as:

  • What is the .dcu file?
  • What program do I need to open a .dcu file?
  • How can the .dcu file be opened, edited or printed?
  • How can I convert .dcu files to another format?

Table of Contents

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ Delphi Compiled Unit

DCU file is a Delphi Compiled Unit. Embarcadero Delphi is an integrated development environment (IDE) for console, desktop graphical, web, and mobile applications. When Delphi compiles a source (.pas) file, it creates a corresponding Compiled Unit (.dcu) file (Delphi compiled unit).
Application: Embarcadero Delphi
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
DCU aliases:
DCU related links:
DCU related extensions:
Delphi Project

Pascal/Delphi Source Code

Delphi Form

Delphi Package

Delphi Component Package

Delphi Package Library

Borland Package Library

Borland Project Group

Delphi Component Resource

Delphi Option File

Other types of files may also use the .dcu file extension.

🚫 The .dcu file extension is often given incorrectly!

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

ccu, cdu, cu, dc, dch, dci, dck, dcy, ddu, dfu, dsu, duc, dxu, ecu, fcu

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

iOS Device Firmware Upgrade File
DFUWizard Firmware Image
MAP dlms User Association Document
DipTrace Schematic Document
CUDA Source Code
my Knowledge Explorer Change Unit
CU-SeeMe Data
DivX Player Playlist
DesignCAD Document
TunerPro ECU Configuration

🔴 Can't open a .dcu 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 cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .dcu file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .dcu file extension, write to us!

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