File Extension Database

Open DEN File

Files with the DEN extension are those that contain density data for the valence junctions calculated by the Xiamen XMVB software. XIAMEN Valence Bond software is developed at Xiamen University, China, and is used to calculate the electronic structure based on the non-orthogonal Valence Bond methods.

The files with the DEN extension are cataloged as data files and work only with the XMVB software from Xiamen University, therefore, to open and operate them, you must have this software installed on your system.

Xiamen University does not have a direct download link so far. You must download a blank agreement contract, fill it out and send it to the email address indicated there: http://xmvb.org/download.jsp

How Can I Open DEN File on Windows

We researched and learned that the best way to open DEN file is to find a DEN file in question in Windows OS File Explorer and double click on it to launch the corresponding application.
If a DEN file is not opened in an application and you instead get a "Windows can't open a file" error message you should try looking for an application which can open the file in question.
If you know the application which can open DEN file then run it and see if there is a File->Open main menu option in the application.
If you don't know the application which function as DEN file opener then try to search online for "DEN viewer", "application to open DEN file" or "open DEN file" queries in the search engine you like.
Install the application you found and check if it can open DEN file

How Can I Open DEN File on Mac OS

We recommend to find a DEN file in question in Mac OS Finder and double click on it to launch the corresponding application.
If a DEN file is not opened in a Mac OS application and you instead get a "There is no application set to open the file" error message you can click on "Search App Store" in the error dialog and Mac OS will show you applications compatible with DEN file.
If you know the Mac OS application which can work as DEN file opener you can choose the "Choose Application..." option in the error box to associate the file extension and open DEN file in it.
If you don't know the application which can open DEN file then try to search for "DEN viewer", "application to open DEN file" or "read DEN file" queries in the online search engine you like.
Install the application you found and check if it can read DEN file

How Can I Open DEN File on Android

If you downloaded a DEN file on Android device you can open it by following steps below:

In the Android apps list on your Android device find "My Files" or "File manager" app and tap to start it.
Tap on "Downloads" folder inside the app.
You should see your downloaded DEN file in that folder.
Tap on the file. If Android device supports opening the file you downloaded it will open in the corresponding app.
If file does not open you can look for the corresponding app that can open the file by searching Android App Store for the "DEN".
If you cannot open the file with the apps from Android App Store it is possible that the file could only be opened on desktop platforms such as Windows or Mac OS. Try searching for "DEN viewer", "DEN file reader" online and see if any desktop applications can open it.
It is also possible that the file you downloaded is outdated and is no longer supported.

How to Open DEN File on iPhone or iPad

To open DEN File on iOS device follow steps below:

We advies to open Files app on your iPhone or iPad device. You can find it by swiping down on the home screen and typing "Files" in the search bar.
Tap on the Downloads folder on the Files app home screen.
You will see all files that you recently downloaded. Tap on the DEN file to view it.
If you have the right app that can open it it will automatically launch and open your file.
If you don't have the app which can open it you need to serch Apple app store for "DEN". This way you can find apps which can open DEN files.
If this doesn't help it is possible that your file could be opened only by the desktop application. To find an app which can open it on desktop look for "DEN viewer" or "DEN file" online in your favorite search engine.