A daily updated filename extension database!

DFM file extension

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

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

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

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

✅ Delphi Form

DFM file is a Delphi Form. DFM files are always paired with .pas files. DFM file contains the details (properties) of the objects contained in a form.
Application: Embarcadero Delphi
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
DFM aliases:
DFM related links:
DFM related extensions:
Delphi Project

Pascal/Delphi Source Code

Delphi Compiled Unit

Delphi Package

Delphi Component Package

Delphi Package Library

Borland Package Library

Borland Project Group

Delphi Component Resource

Delphi Option File

✅ Help and Manual eBook Template

DFM file is a Help and Manual eBook Template. Help and Manual is an advanced multi format help authoring tool that provides all the formatting and editing features of a modern word processor.
Category: Document files
Application: Help and Manual
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
DFM aliases:
DFM related links:
DFM related extensions:
Computer-based Training Document

Help and Manual Impict Image

Help and Manual 3 Project

Help and Manual Print Manual Template

Help and Manual Viewer Template

Microsoft Help 2 Registered Namespace List

Microsoft Help 2 HxMerge Project

Microsoft Help 2 Compiled Help Index

Microsoft Help 2 Merged Index

Microsoft Help 2 Query Data

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

🚫 The .dfm file extension is often given incorrectly!

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

cfm, dbm, dcm, ddm, dem, df, dfh, dfk, dfl, dfn, dgm, dm, dmf, drm, dtm

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

D Fusion Key File
DICOM Bitmap Image
DCM Music Module
OpenEdge ABL Data Definition
Paradox Table Filter
Lightscape Parameter File
FFmpeg Video Stream
DartPro 98 Audio Tree
Quake 3 Arena Demo
X-Tracker Music Module

🔴 Can't open a .dfm 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 .dfm 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 .dfm file extension, write to us!

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Browser: Abbreviation Application Archive Audio Configuration Data Development Disk Image Document Ebook Font Game Data GIS Graphic Malware Multimedia Other Project Scam Unknown Video
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