Knowledge Base

File Extension DTD

The file extension DTD is associated with multiple programs and applications and various file types. The most common association is a Document Type Definition file, but the extension can also be created with ArcView, LogiKal, and 2D Design. DTD files contain data and information related to the program that created the file.

If the DTD file extension is defined as a Document Type Definition (DTD) file, the file is a developer file type which contains variables in a plain text format that are used to define the format used for Hypertext Markup Language (HTML), Extensible Markup Language (XML), Extensible Hypertext Markup Language (XHTML), or Standardized General Markup Language (SGML) documents. The data contained in a DTD file defines headings, paragraphs, and other elements used in digital media and how each component is to be processed.

HTML, XML, XHTML, and SGML are markup languages for developers to create documents used with various online and digital media programs and applications. DTD files identify the proper structure of documentation written in these languages as well as ordering and nesting of various components used by web pages.

DTD files that are associated with ArcView (ArcGIS) are a data file type which contains help information that lends support for the UNIX version of the ArcView software application. ArcView is commonly known as ArcGIS for Desktop and is an application produced by ESRI which provides professional tools for organizing and analyzing geographical data.

If the file extension DTD is related to LogiKal, the file is categorized as a various data file type that contains metalworking data which is collected for the purpose of calculations. The calculations assist with various designs used in the metalworking business. LogiKal is a software application created by Orgadata AG which provides tools that perform computations for metalworking designs. LogiKal is designed for use by metalworking professionals in businesses of all sizes.

DTD files which are created with 2D Design by TechSoft are a data file type that contains a variety of elements such as lines, color definitions, shapes, and other data. The contents of a DTD file assists with creating two dimensional drawings using the 2D Design software application. 2D Design is a Computer Aided Design (CAD) program which is used to create 2D vector graphics.

How to Open DTD Files

Since the file extension DTD is associated with multiple programs and applications, double click on the file to see if it will automatically open in a default program you have installed on your PC. DTD files can consist of different file types, so you may already have a program which will open the file.

DTD files which are defined as a Document Type Definition file can be opened using a variety of developer applications and text editing programs. If you are using the Windows operating system, you can use Microsoft Visual Studio, which is a developer application for creating various software programs. Visual Studio 2012 is available as a paid download on the Microsoft website.

Document Type Definition (DTD) files can also be opened using a variety of multiplatform developer applications such as XMLSpy and oXygen XML Editor. XMLSpy is an editing application used to modify XML documents and is available as a 30-day free trial on the Altova website. OXygen XML Editor is a development and authoring solution which is available as a 30-day free trial download on the oXygen XML website. Both XMLSpy and oXygen XML Editor are compatible with Windows, Mac OS X, and the Linux operating system.

You can also open Document Type Definition (DTD) files using any text editing application such as Notepad or WordPad for Windows, Apple TextEdit for Mac, or gEdit and Nano Editor for Linux.

If the file extension DTD is part of ArcView (ArcGIS), you can open the file using the ArcGIS for Desktop application. ArcGIS can be downloaded as a free trial version on the ESRI website and requires Microsoft .NET framework on a Windows PC. If you have Windows installed on a Mac PC, you must add BootCamp, Parallels, or VMWare in order to open DTD files using ArcGIS. If you are using the UNIX operating system, simply download ArcGIS for UNIX.

DTD files that are related to LogiKal can be opened using the LogiKal software application. LogiKal is available for download on the Ogadata website and is designed for use with the Windows operating system and Mac OS X.

If the file extension DTD is associated with 2D Design, you can open the file using the 2D Design software application by TechSoft. 2D Design is available for download on the TechSoft UK website and is compatible with the Windows operating system.