All about DTD Files

The DTD file type is primarily associated with Visual Studio.

DTD	File extension: DTD
	File type:	developer file

What is a DTD file?

DTD files mostly belong to Visual Studio by Microsoft. DTD file type is associated with a set of markup declarations that constitute the definition of an SGML-family markup language document filetype.

Main Use: DTD file stands for document type definition file. DTD file contains the elements and attributes that make up SGML-family document types such as SGML, XML, HTML and XHTML. DTD files are useful in defining the valid building blocks present in an XML file. They help define the document format structure using a collection of validated attributes. DTD files are regularly referenced within webpages using a URL. DTD file is used for validation of documentation of files in the following way. Prior to parsing an XML file, the application may first validate the markup declaration utilizing a DTD file to ensure the XML document can be correctly parsed.
Other Uses: DTD can also refer to Design Tools Draw files and are used to store drawing files created using 2D Design, an application that is used for creating two-dimensional designs. The DTD files can contain lines, shapes, colors, and other drawing related attributes. These DTD drawing files are useful in resizing drawings such containing buildings, vehicles, machines, or logos without a reduction in quality.

How to open a DTD file

You need a suitable software like Visual Studio to open a DTD file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your DTD file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a DTD file directly in the browser:. Just drag the file onto this browser window and drop it.

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Programs that open and convert DTD files:

Visual Studio by Microsoft
See the previous paragraphs to learn more about the main application. DTD files are often referred to as Visual Studio simple text files because this type of file is primarily created or used by this software.
ArcView (UNIX Hyperhelp supporting file) by ESRI
ArcView is a newly optimized and widely used GIS (Geographic Information System), which is utilized for visualizing, analyzing, and creating vast geographical models which can analyze trends, relationships, and reveal patterns. The DTD file for this program contains information about the address, the GPS location, city, and many more attributes of the geographical area of focus. This file format is classified as GIS. Related links: ArcView FAQ
DesignTools (2D design file) by TechSoft UK Limited
TechSoft has experience supplying CAD and CAD/CAM software and hardware; particularly for educational users. Furthermore, the DesignTools software was primarily created for users who require sophisticated design and drawing features, whilst ensuring the software is easy to pick and learn in a very short timeframe. This file format is classified as CAD.
SGML Document (developer file) by International Organization for Standardization
A DTD file in regards to an SGML document refers to a text file that specifies elements and many attributes that are utilized within an XML, HTML, or SGML file documents. These DTD files can be read by many different programs such as Microsoft Visual Studio where additionally, DTD files are commonly utilized to validate whether a file represents a valid document. This file format is classified as Simple text file. Related links: SGML reference info for HTML

DTD file extension format:

The file format, which is the arrangement and type of data in a file, determines which program can open the file. Each file format has a unique extension and almost always a unique signature. For example, Microsoft Word documents have the extension .docx and the signature (usually the first 3 characters in this file) PK. However, different programs can use the same file extension, and file extensions can be assigned incorrectly. If there are problems opening a file, you must first determine the file format used. Our evaluation of the DTD files looks like this:

The file type with the extension 'DTD' mainly uses a special format. The two most popular formats are as follows:

70% of all DTD files save the data in XML file format. The Extensible Markup Language (XML) is a simple text-based format for representing structured information: documents, webpages, data, configuration, books, transactions, invoices, and much more. XML defines a set of rules for encoding documents in a format that is both human-readable and machine-readable. These files are plain text, which means they can be viewed with any text editor such as Windows Editor, Nano for Linux, and TextEdit for macOS. Most of these files are 1 KB to 100 KB in size. The file type is old but is used even today. Certain words are almost always found in the files, such as this and file. The following filename is common: dtbook-2005-3.dtd. Such DTD files store data about hibernate and configuration.
20% of all DTD files belong to TechSoft 2D Design drawing. They consist of illegible, cryptic characters. DTD files are between 15 KB and 440 KB in size. The following keywords are characteristic: dt2ddtd and ISO A3. These files can be linked to design.

The remaining 10% of all DTD files are different files with different signatures, the following 3 formats can be found: UTF-16 (LE). Tagged as template, product or design. Just click the "Choose your .dtd file to analyze" button on this page to find out what your DTD file is.

Technical Data for DTD File Extension

File classification:

Simple text file

Related files:

xml, ddt, ctp, css, docx, zip, xsl, tdt, sgml, sgm, dta, dtp, numbers, txt, sln, lib, mdp

Mime type:

application/xml-dtd, text/x-dtd

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: dtdfile, FileType: Document Type Definition

ProgramID: dtdfile, FileType: DTD File, AppName: Adobe GoLive Application
EXEFile: GoLive.exe

ProgramID: XMLEditPro.General
EXEFile: %ProgramFiles%\XMLEDI~1\XMLEDI~1.EXE /dde

ProgramID: VBExpress.dtd.8.0
EXEFile: %ProgramFiles%\Microsoft Visual Studio 8\Common7\IDE\vbexpress.exe /dde %1

ProgramID: pnpdtdfile
EXEFile: %ProgramFiles%\A Tech Group\Professional Notepad\notepad.exe %1

ProgramID: VisualStudio.dtd.8.0
EXEFile: %ProgramFiles%\Microsoft Visual Studio 8\Common7\IDE\devenv.exe /dde %1

ProgramID: VWDExpress.dtd.8.0
EXEFile: %ProgramFiles%\Microsoft Visual Studio 8\Common7\IDE\VWDExpress.exe /dde %1

ProgramID: Syncro Soft. 6.0
EXEFile: %ProgramFiles%\Oxygen 6.0\oxygen.exe %1

ProgramID: stylusstudiofile.dtd
EXEFile: %ProgramFiles%\bin\Struzzo.exe %1

ProgramID: VCExpress.dtd.8.0
EXEFile: %ProgramFiles%\Microsoft Visual Studio 8\Common7\IDE\VCExpress.exe /dde

ProgramID: VCSExpress.dtd.8.0
EXEFile: %ProgramFiles%\Microsoft Visual Studio 8\Common7\IDE\VCSExpress.exe

ProgramID: stylusstudiofile.dtd
EXEFile: %ProgramFiles%\STYLUS~1\bin\Struzzo.exe

ProgramID: VisualStudio.dtd.9.0
EXEFile: %ProgramFiles%\Microsoft Visual Studio 9.0\Common7\IDE\devenv.exe

ProgramID: VBExpress.dtd.9.0
EXEFile: %ProgramFiles%\Microsoft Visual Studio 9.0\Common7\IDE\vbexpress.exe

ProgramID: VWDExpress.dtd.9.0
EXEFile: %ProgramFiles%\Microsoft Visual Studio 9.0\Common7\IDE\VWDExpress.exe

ProgramID: VCExpress.dtd.9.0
EXEFile: %ProgramFiles%\Microsoft Visual Studio 9.0\Common7\IDE\VCExpress.exe

ProgramID: VSTA.dtd.8.0
EXEFile: %ProgramFiles%\Microsoft Visual Studio 8\Common7\IDE\vsta.exe

ProgramID: dtdFile.dtd
EXEFile: %ProgramFiles%\Rational\Rose\rose.exe

Show all 18 listings To Top

a dtd developer file is a special file format by Microsoft and should only be edited and saved with the appropriate software.

How to solve problems with DTD files

Associate the DTD file extension with the correct application.
Update your software that should actually open developer files. Because only the current version supports the latest DTD file format. Search, therefore, e.g. on the Microsoft manufacturer website after an available Visual Studio update.
To make sure that your DTD file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .DTD file online - secure, fast, and no downloads needed.