DTD File Extension

Document Type Definition Format
- File Type dtd
- Popularity
- Application XML:Wrench
- Category Developer Files
- Format Text
What is a DTD file?
The DTD extension is related to Document Type Definition Format and is classified in the Developer Files category, which contains 1166 files.
DTD file support extends to various operating systems, including Linux, Mac OS and Windows. There are 8 programs available to open a DTD file, including popular tools like Microsoft Visual Studio, Atom and Sublime Text.
MIME types
- application/xml
- text/xml
Programs that support DTD files
How to open a DTD file?
If you are having trouble opening a DTD file, it usually means the right software is not installed. Choose a program from the list that matches your operating system. Next, visit the official website of the developer, download the software, and install it on your device.
Thanks to their popularity, Microsoft Visual Studio, Atom and Sublime Text are often the go-to programs for managing DTD files. If you want the most recent release of XML:Wrench, head over to the Nick Moon site and download the version designed to run on all platforms.
After completing the installation, DTD files should be recognized by the system and linked to XML:Wrench.
Set XML:Wrench as your default DTD viewer
Set default app to open files on Mac
- Right-click or Control + left-click on the desired DTD file to open a menu of available actions;
- Choose "Open in Application" and click "Other";
- In the lower section of the window, you’ll find the "Enable" menu, with "Recommended Programs" pre-selected as the default option;
- Select "All Programs" in this menu, and then search for XML:Wrench. Check the box next to "Always open in app" to make sure it’s the default option.
Change a default app in Windows
- To get started, right-click your DTD file, then choose "Open With" and select "Choose Another Application" from the context menu;
- From the list of applications in the pop-up window, find and select XML:Wrench as your desired application;
- Check the "Always use this app" checkbox, and then click "OK" to set your chosen app as the default for opening DTD files.
Solving Common DTD File Challenges
While DTD files can sometimes present difficulties, most problems can be resolved quickly with minor software modifications. Check the tips below to help solve them.
What Causes XML:Wrench to Crash Frequently?
Insufficient software updates are a likely cause of XML:Wrench crashes. Be sure to install the latest updates for Nick Moon products.
A simple restart of your computer can often fix many common problems, which is why it is the recommended first step before making any adjustments to your software settings.
How can I restore a damaged DTD file?
Start a data recovery program and open the damaged DTD file. Then, choose the "Repair" option from the menu. Allow the recovery process to complete, which will automatically repair the damaged developer files.
How can I determine if my DTD file is damaged?
Characteristics of corrupted DTD developer files can include:
- XML:Wrench or other programs stop responding or crash when trying to handle the file;
- Error notifications appear during file manipulation;
- When opening the file, errors occur or the inability to access its contents;
- Unexplained DTD file size inflation;
- Editing the archive in Microsoft Visual Studio is hampered by poor overall performance;
How to edit a DTD file?
To modify DTD files, you need to install special software that makes it possible to open and edit developer files. Online DTD editors are more restricted compared to software designed for Document Type Definition Format.
Best DTD Editor Software in 2026
Taking the above factors into account, we have selected a list of DTD editors currently available.
| DTD Editor Software | Developer | Platforms | Overall Rating |
|---|---|---|---|
| Eclipse | Eclipse | Windows, Mac OS, Linux | 4.7 out of 5 (38 reviews) |
| Sublime Text | Sublime HQ Pty | Windows, Mac OS, Linux | 4.6 out of 5 (39 reviews) |
| Adobe Dreamweaver | Adobe | Windows, Mac OS | 4.5 out of 5 (38 reviews) |
| XML:Wrench | Nick Moon | Windows | 4.5 out of 5 (34 reviews) |
| Microsoft Visual Studio | Microsoft | Windows, Mac OS, Linux | 4.2 out of 5 (35 reviews) |
| oXygen XML Editor | SyncRO Soft | Windows, Mac OS, Linux | 4.2 out of 5 (36 reviews) |
| Stylus Studio | Progress | Windows | 4.2 out of 5 (41 review) |
| Atom | - | Windows, Mac OS, Linux | 4.1 out of 5 (36 reviews) |
Convert files to and from DTD
If working with a DTD file is challenging, one solution is to convert it to formats like DXF or other supported formats.
After converting a DTD file, some capabilities may be limited, but you can often convert it back to the original format.











