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Basic information about XTD file

When there is a problem with opening files with the file extension XTD（*.XTD or *.xtd）, you do not need a computer expert. In most cases, using the helpful suggestions of experts contained in our website as well as appropriate programs, you can solve the problem with the XTD file yourself.

There are 1 file types using the XTD file extension in our database. In the further part of this page, you will find detail information about all the XTD file with their brief description and a list of programs that support XTD file sorted by operating systems. The table below provides useful information about the XTD file extension. It answers questions such as:
  • What is the XTD file?
  • How to open a XTD file?
  • What programs do I need to open a XTD file?
  • What programs help to create and edit a XTD file?
  • How to convert XTD files to another file format?
  • How to convert another files to XTD file format?


1.Detail information about XTD file extension: XML Type Definition

File type XML Type Definition Category Settings Files
Developer N/A File format N/A
Description XTD file is a XML Type Definition. XTD filename suffix is mostly used for XML Type Definition files. XTD file format is compatible with software that can be installed on Linux, Mac OS, Windows system platform. Users are advised to use Windows Notepad software for managing XTD files, although 3 other programs can also handle this type of file. On the official website of Microsoft Corporation developer not only will you find detailed information about theWindows Notepad software, but also about XTD and other supported file formats.
Software programs that will open, edit or convert XTD files

Windows		 Microsoft Windows NotePad
NotePad++ text editor

macOS		 TextEdit

Linux		 gedit



Can't open a XTD file?

When you click a file to open it, operating system examines the filename extension. If operating system recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When operating system does not recognize a filename extension, you receive the following message:

”Can't open this file: example.XTD”。

To open this file, you install one of the applications from the list of software programs that you found here, you should be able to open, edit or convert the file with the XTD extension without any issue.


Where I can download the application that support XTD file?

If you do not know where you can download the application from our list, click on the link (which is the name of the program), you will find more information there on the location where to download the required application. Most often they are the websites of software manufacturers.


How to change file associations?

  • Right-click a file with the extension whose association you want to change, and then click "Open With".
  • In the "Open With" dialog box, click the program whith which you want the file to open, or click "Browse" to locate the program that you want.
  • Select the ”Always use the selected program to open this kind of file” check box.


Can I change the extension of XTD files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read/open the file. The problem is, changing the file extension does not change the file format. Select a software program from our list and install it on your computer. If the file has not opened correctly, you have to look for a different software program from our list. Sometimes you have to repeat the operation several times.


What else may cause problems width open a XTD file?

The reasons for the lack of the ability to open a XTD file on your computer may be at least several. The easiest thing is to find a suitable application installed on your computer, which will open a XTD file. If there is still something wrong, you might want to check:

  • Whether the XTD file is damaged.
  • Whether the XTD file is incorrectly linked in the registry entries.
  • Whether the XTD file extension has been accidentally removed from the Windows registry.
  • Whether the installation of an application that supports the XTD file format is incompletely.
  • Whether the XTD file is infected.
  • Whether the drivers of the equipment used for opening a XTD file are up to date.
  • Whether your computer has enough hardware resources to open a XTD file.

If the XTD file still not working with your software after eliminating the above shortcomings? That means that the problem is more complex and requires the help of a specialist.