Tips to open DTD file

Can't open the DTD file? You are not the only one. Thousands of users face similar problems every day. Below you will find tips on how to open DTD files as well as a list of programs that support DTD files.

DTD file extension

File Name Document Type Definition Format
File Category Developer Files

The DTD file is supported on 3 operating systems. Depending on your operating system, you may need different software to handle the DTD files. Below is a summary of the number of programs that support and open the DTD file on each system platform.

Operating systems
  • 8
  • 3
  • 2
  • 0
  • 0
  • 0

What is DTD file?

The file with the extension DTD is the Developer Files file type. In addition to this file, the Developer Files category includes 1205 related files. Document Type Definition Format appears on 3 operating systems as a functional file. Although it can be found with greater or lesser success on any operating system, it will only be useful on Linux, Mac OS, Windows. There are also 13 alternative programs to handle the DTD file. The Text editor, EditiX, Windows Notepad, Microsoft Visual Studio programs will also handle the file when the XMLSpy program does not fulfill its role.

How to open DTD file?

The main problem with Document Type Definition Format is that the DTD file is incorrectly associated with programs. This is manifested by the fact that DTD files open in unusual applications or do not have an assigned program. This can be quickly resolved by following the instructions below.

The first thing you should do is just "doubleclick" on the DTD file icon you want to open. If the operating system has an appropriate application to support it and there is also an association between the file and the program, the file should be opened.

Step 1. Install XMLSpy

In this case, you should first verify that the XMLSpy application is installed on the computer. This can be achieved by typing XMLSpy into the operating system search engine. If we do not have this program, it is worth installing it, as it will help you automatically associate the file DTD with XMLSpy. Later in this article you will find a list of programs that can open DTD files.

Step 2. Create association of XMLSpy with DTD files

If the application is or has been freshly installed, but the DTD file still does not use the XMLSpy program, it means no association. This option is available from the level of Properties of a specific file available in the context menu. The window will show, among other things, the type of the file and the information by which the program is used to launch the file. Using the "Change" button we can select the desired program. If there is no software on the list, simply select "Browse" and manually select the directory where the application is installed. However, it is important to check the "Always use the selected program ..." box, this will allow you to permanently associate the DTD file with the XMLSpy application.

Step 3. Update XMLSpy to the latest version

The fault may also lie with the XMLSpy program, it is possible that Document Type Definition Format requires a newer version of the program.

Step 4. Check for the following problems with the DTD file

If the above steps do not help, you can assume that the file itself is not correct. File problems can be divided into the following:

Very often, the file may be size 0 or incomplete. This is most often caused by a problem while downloading the DTD file. The only repair option is to download the file again.
The computer may have fallen victim to a computer virus or hacker. Perform a virus scan using available and up-to-date anti-virus software. Alternatively, you can use the scanners available online. However, it is important to scan the entire system, not only the file DTD or the program directory. As a result of the scan, sometimes it is not possible to recover DTD files, which are deleted if there is a backup of this file, then after restoring it, it must also be scanned.
This can happen especially when the program is dynamically developed and the structure of the DTD files changes over time. These problems are known and are often very easy to fix using the software developers's website.
The file may be corrupted in a number of ways. Repairing is very dependent on the file type. Some programs offer the option of recovering data from damaged DTD files.
When reading, a message appears that the file was encrypted or corrupted. The encrypted DTD files can be used by the device on which they were encrypted, on any other device it is required to have the appropriate cryptographic key and decrypt the file before its recovery.
The operating system protects files in some locations (e.g. the root of the system partition) against unauthorized access. These directories are write-protected to them and it's very hard to fix this problem. Copying the DTD file to another location will fix the problem.
This can happen on a file that does not support multiple access. Some file types can only be opened in one program at a time. Running programs (including those in the background) should be verified. Sometimes it is necessary to wait a while before referencing the DTD file again. However, some background programs may block the DTD file while scanning. If nothing helps, please reset the device.