DFM file format description

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

2 filename extension(s) found in our database.

.dfm - Delphi Form

The DFM development files are related to Embarcadero Delphi. 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

Category:

Development files

Mime-type:

application/octet-stream

Magic:

- / -

Aliases:

Delphi Form related extensions:

.dtsi: Linux Device Tree Include File
.dts: Linux Device Tree Source
.ds: DAZ Studio ASCII Script
.dsb: DAZ Studio Binary Script
.dse: DAZ Studio Script Encrypted
.csc: Ovation Pro C Script

.dfm - Help and Manual eBook Template

The DFM document files are related to Help and Manual. 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.

Application:

Help and Manual

Category:

Document files

Mime-type:

application/octet-stream

Magic:

- / -

Aliases:

Help and Manual eBook Template related extensions:

.hwpx: Hangul Word Processor 2010 Document
.hcdx: Hallmark Card Studio Document
.gtp: Guitar Pro Tabulature
.gp: Guitar Pro 7 Tabulature
.gnh: GravoStyle Design Document
.ghx: Grasshopper 3D XML Document

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

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 can't open this file:

example.dfm

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.

Open Control Panel > Control Panel Home > Default Programs > Set Associations.
Select a file type in the list and click Change Program.

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:

dm, df, ffm, dtm, dfl, fm, fdm, cfm, dvm, drm, dfn, xfm, dfk, vfm, rfm

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

.dm: BYOND Dream Maker Source Code
.dfl: DEFLATE Compressed Data
.df: OpenEdge ABL Data Definition
.df: Paradox Table Filter
.df: Lightscape Parameter File
.ffm: FFmpeg Video Stream

Operating systems

DataTypes.net currently supports the following operating systems:

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

If you find the information on this page useful, please feel free to link to this page.

https://datatypes.net/open-dfm-files

If you have useful information about the .dfm file format, then write to us!

Please help us by rating this page below.