The File Extensions Database

.DBX File Extension

  • Developer by: Microsoft
  • Category: Misc Files
  • Format: Binary

What is an .DBX file?

.DBX is Outlook Express E-mail Folder

A DBX file is a folder created by Outlook Express, a Microsoft email program. It contains email messages for a specific mailbox. DBX files are typically saved within the "Documents and Settings" user directory and may be copied to another folder in order to backup e-mail messages.

DBX folders have names corresponding to their email mailbox. For example, common names are Inbox.dbx, Sent Items.dbx, Drafts.dbx, and Deleted Items.dbx. Folders.dbx stores the master index for all the mailboxes. If it is missing, Outlook Express will re-index the mailboxes and recreate it.

DBX mail folders can be imported into Windows Mail (included with Windows Vista) by selecting File → Import → Messages, then choosing Import mail from an OE6 store directory and selecting the DBX folder you would like to import.

DBX folders can be imported into Windows Live Mail (included with Windows 7) by selecting File → Import → Messages → Microsoft Outlook Express 6 and locating the appropriate DBX folder.

The Stellar DBX to PST Converter program can be used to convert Outlook Express DBX files to the Outlook .PST format. You can then save converted files to Office 365, HTML, RTF, and PDF formats.

NOTE: DBX folders should only be opened in Outlook Express or imported using another program. If opened or edited manually, they can become corrupted and cause Outlook Express not to function properly.

Programs that open Outlook Express E-mail Folder
Microsoft Outlook Express
Microsoft Windows Mail
Microsoft Windows Live Mail
Remo Recover Outlook Express
OE-Mail Recovery
Stellar DBX to PST Converter
File Type 2 AutoCAD Database Extension File
Developer by: Autodesk Category: Plugin Files Format: Binary

Extension file used by AutoCAD, an engineering and design CAD application; contains custom information used to read and write drawing information; written using Autodesk's ObjectDBX API, which enables developers to programmatically access drawing components.

Third-party developers can read .DWG files by creating DBX extensions. For example, some versions of Adobe Acrobat bundle several DBX files for reading Autodesk CAD drawings.

Programs that open AutoCAD Database Extension File
Autodesk AutoCAD 2018
File Type 3 Dropbox Encrypted Database File
Developer by: Dropbox Category: Database Files

A DBX file contains an encrypted database used by Dropbox, an online file hosting service. It stores encrypted information about a user's Dropbox in .SQLITE record format. DBX files may include recently modified files, the local path to a Dropbox folder, and the email address of the user.

DBX files are used by Dropbox to store various types of data and are similar to .DB database files but are encrypted. The name of the file indicates what type of information is contained in the file, such as filecache.dbx, notifications.dbx, photo.dbx, or config.dbx.

DBX files are stored in various folders in Dropbox installation directories. The config.dbx is stored in the following locations:

Windows XP:
C:\Documents and Settings\%USERNAME%\Application Data\Dropbox\
C:\Documents and Settings\%USERNAME%\Local Settings\Application Data\Dropbox\

Windows Vista, 7, 8, 8.1, and 10:



Programs that open Dropbox Encrypted Database File

How to solve problems with DBX files

  • Associate the DBX file extension with the correct application. On :
    Windows: Right click on any DBX file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.DBX files". Mac: Right click (or Ctrl-click) the DBX file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .DBX is Outlook Express E-mail Folder. Because only the current version supports the latest DBX file format. Search, therefore, e.g. on the Microsoft manufacturer website after an available .DBX is Outlook Express E-mail Folder update.
  • To make sure that your DBX file is not corrupted or virus-infected, get the file again and scan it with antivirus software.