Type: Developer Files
Acronym: Document Type Definition File
Opens With: Microsoft Visual Studio 2010, any text editor
Text file that specifies elements and attributes used in an XML, SGML, HTML, or XHTML document; can also define the ordering and nesting for elements and their attributes; commonly referenced within Web pages using a URL. DTD files are also used to validate whether a file represents a valid document. For example, before parsing an XML file, a program may first validate the markup declarations using a DTD file to make sure that the XML can be parsed properly.
Type: Data Files
Acronym: Design Tools Draw File
Opens With: TechSoft UK 2D Design
Drawing created by 2D Design, a program used for creating two-dimensional designs; may contain lines, shapes, colors, and other drawing elements; may be resized without losing image quality; used for various types of drawings, including buildings, vehicles, machines, and logos.