File Extension DBX

  • Full name
    Microsoft Outlook Express E-mail Folder Format
  • Developer
  • Popularity
Have you encountered a problem with a DBX file? Don’t you know which program opens a file with this extension? You will find all the information you need about working with a DBX file here. In the further part of this page we have added a list of programs that should open your DBX file. It is enough you choose a proper application for your operating system, download and install it.


Files with the extension DBX contain a folder of the email program Outlook Express from Microsoft. The name of the file usually represents the name of the corresponding folder in the program, eg Sent.Dbx or inbox.Dbx (for the Inbox). The format of these files is proprietary and can be processed by only a few programs.

The file folder.Dbx contains a directory (index) of the other folders and is generated automatically. Copying the files or the directory in which they are located copies the entire structure of the Outlook Express folders and the emails they contain. This makes it very easy to create a backup copy of your own emails.

Extracting individual messages is more complicated, but Outlook Express itself and a number of programs are capable of doing so. These often have special functions such as the reconstruction of partially destroyed mails or the migration of data.

Programs which can open a DBX file

How to open a DBX file? Advice and guidance

Absolutely most often appearing reason that prevents you from opening the DBX file is the lack of a proper application to support it in your operating system. It is notably the first thing you need to address. When one of the programs to support a DBX file from the list is already installed, you can try to rerun the file. The system should display a message asking you to choose a primary application to support DBX files. At this point we are looking for disk space where the application was installed in and we can link it with a DBX file. Since then, our operating system will use the selected program to support all DBX files.

Other issues

Despite the described problem with DBX there may be many more problems. If the existing operations were not effective, get involved with the following matters:

- verify that the DBX file is not damaged and that it has been downloaded or copied in whole
- verify that the file has a file extension that has not been intentionally changed (for example, if it do not contain other information than its extension suggests)
- make sure again whether the DBX file type is linked in the operating system with a proper program
- make sure that the file is not infected with a virus and you have up to date software and drivers.

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