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Informations about the DTD filename extension and the file formats associated with it

We collected the information you should know about the .dtd filename on this page. If you were sent a(n) .dtd file in an e-mail, but you don’t know what to do with it, then you can find help here. We strive to suggest free, open-source applications that are available to everyone for the file formats.

1 filename extension(s) are in our database

.dtd - Document Type Definition

The DTD file is a Document file, which is connected to the Document Type Definition according to our registry. With the adequate settings, the Document Type Definition (.dtd) files can be opened or converted with the help of Notepad.

Format description:
DTD format
Magic string:
- / -
Related links:
Related extensions:
NASA Ames Data Exchange
Nimbus 7 SAMS APRIORI Data
Microsoft Exchange Non-Delivery Report Message
BBS Directory List
Microsoft Exchange Non-Delivery Report Bad Mail Pointer
Microsoft Exchange Non-Delivery Report Body

Important! Programs other than the ones listed above may also use the .dtd file extension. Even harmful programs can create files with the .dtd extension to store data in them. Always be careful with .dtd files coming from unknown sources. Don’t open executable files that arrived in mails, even if you know the sender.

The .dtd file can’t be opened on your computer?

If the program necessary for opening the .dtd file is installed properly on your computer, then the quickest and simplest way to open the .dtd file is to double-click on the file’s name. If that doesn’t work, then the right software probably isn’t installed on your computer.

While opening the .dtd file, you may receive an error message from the associated application, this can be caused by the following:

Incorrectly given .dtd extension

The .dtd filename extension can be given incorrectly sometimes. The cause of the error could be a mistake or a simple typo. We found the following incorrectly given filename extensions that are the most frequent in the case of .dtd files.

rtd, ctd, etd, dtw, dts, dtf, dtc, wtd, drd, tdd, dfd, std, dd, ftd, dtx

Maybe you’re not even looking for the .dtd file extension?

It’s possible the the file’s extension was given incorrectly. Below, we list some filename extensions that are similar to the .dtd extension. It’s possible that the one you’re looking for is among them.

Sony ClickToDvd Project
Linux Device Tree Source
Weresc CADE Drawing
Microsoft VOLT Glyph Data
Silverrun DFD Document
RagTime Document

Associated applications

The Windows operating system stores information about the applications associated to the file extensions in the registry database. The associations can be queried or modified in the Command Prompt window with the "assoc" command.

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We gladly accept application suggestions, but our primary goal is to suggest reliable, open-source applications that can be freely distributed to the users.

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