Extract text from Document type definitions (DTD)
To convert DTD Document definitions to another format, you need Altova XMLSpy or other Developer software.
To convert other file formats to the "Schema Definition or 2D CAD" file type, you need software like Altova XMLSpy or a similar tool.
The .DTD file extension primarily represents an XML Document Type Definition, a legacy text format standardized by the World Wide Web Consortium to define the legal building blocks, structure, and attributes of an XML document. Alternatively, in educational environments, .DTD refers to TechSoft 2D Design files, a proprietary vector CAD format widely used by UK schools. Additionally, a small percentage of these files are generated as amateur radio data logs by the Elecraft K3/KX3 Utility.
To open XML DTDs, developers use IDEs like Altova XMLSpy, Eclipse, or standard text editors. To open TechSoft drawings, users must rely on the specific TechSoft 2D Design software.
Converting .DTD files is highly dependent on their source. XML DTDs are considered outdated and limited because they do not support XML namespaces, offer poor extensibility, and lack complex data typing. They are strictly text-based and lack the strict validation power of modern alternatives. TechSoft .DTD files are proprietary and notoriously difficult to open without a paid software license, leaving many users stuck when trying to export older school or professional projects to standard machinery.
For web and modern data validation, convert your XML .DTD to XSD (XML Schema Definition) or JSON Schema. For CAD files, convert the .DTD to DXF or SVG for broad compatibility with modern vector editors like Adobe Illustrator or AutoCAD.
Convert.Guru analyzes your DTD file, detects the exact format, and lets you read the text inside.
Users also converted XSD, XML, ZIP, 3D, SGM, 25, PDF, DOCX, LZH, ODT, 24, JPG and 2D files.
If you want to convert DTD file to XSD, XML, JSON, DXF, JS, TS, PY, JAVA, CPP, C, CS or PHP, you can use Altova XMLSpy or similar software from the "XML Schema Definition or CAD" category. In the File menu, look for Save As… or Export….
To convert SH, PY, KT, PS1, SWIFT, LUA, PL, JAVA, SCALA, JS, VBS or TS files to DTD, try Altova XMLSpy or another comparable tool in the "XML Schema Definition or CAD" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our DTD converter.