Filename Extensions
If you are seeking information about file extensions, then you are in the right place at right time.

Details of extension .dtd

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

Below, you can find answers to the following questions:

  • What is the .dtd file?
  • Which program can create the .dtd file?
  • Where can you find a description of the .dtd format?
  • What can convert .dtd files to a different format?
  • Which MIME-type is associated with the .dtd extension?
Document Type Definition .dtd file icon

Document Type Definition

DTD file is a Document Type Definition. Document Type Definition (DTD) is one of several SGML and XML schema languages, and is also the term used to describe a document or portion thereof that is authored in the DTD language.
Category: Document files
Application: Notepad
Program name: notepad.exe
Mime-type: application/xml-dtd
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:
Hypertext Markup Language Document
Plain Text Document
Extensible Markup Language File
Standard Generalized Markup Language Document
SGML/XML External Entity
Unicode Text File
Chinese Text Document
ICQ 6 Settings Data .dtd file icon

ICQ 6 Settings Data

DTD file is an ICQ 6 Settings Data. ICQ is an instant messaging computer program, which was first developed by the Israeli company Mirabilis.
Detailed description not available
Category: Configuration files
Application: ICQ
Program name: -
Mime-type: application/octet-stream
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:
ICQ Saved Chat Session
ICQ Contact List Data
ICQ Archive Data
ICQ Ignore List
ICQ Saved Chat
ICQ Find Users Data
ICQ 6 Hash Data
ICQ Compressed Sound Scheme Data

Other types of files may also use the .dtd file extension. If you have helpful information about .dtd extension, write to us!

Is it possible that the filename extension is misspelled?

We found the following similar extensions in our database:

Cherrytree XML Data
OMA Download Descriptor
Football Manager Data
ABC Dyadic Functions Data
DGD Program
PL Designer Document
Proben1 Dataset
Weresc CADE Drawing
DoroTree Family Tree Data

The .dtd filename extension is often given incorrectly!

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

vtd (1), dgd (1), td (1), ddt (1), rtd (1), ctd (1), etd (1), dtw (1), dts (1), dtf (1), dtc (1), wtd (1), drd (1), tdd (1), dfd (1)

Can't open a .dtd file?

If you want to open a .dtd file on your computer, you just need to have the appropriate program installed. If the .dtd association isn't set correctly, you may receive the following error message:

Windows can't open this file:

File: example.dtd

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 from a list of programs that are installed on your computer.

To change file associations:

  • Right-click a file with the extension whose association you want to change, and then click Open With.
  • In the Open With dialog box, click the program whith which you want the file to open, or click Browse to locate the program that you want.
  • Select the Always use the selected program to open this kind of file check box.

Supported operating systems

Windows Server 2003/2008/2012/2016, Windows 7, Windows 8, Windows 10, Linux, FreeBSD, NetBSD, OpenBSD, Mac OS X, iOS, Android