The file having the dbx file extension extension at the end created by the Microsoft Outlook Express. It contains the complete the items created by the Outlook Express Application such as Emails messages for specific folders. Every folder have its own dbx file such as for sent items the file created is sentItems.dbx. Similarly for the other folders also have dbx file extension. The folder.dbx stores the master index for all mailboxes. These files can be imported into windows live mail by selecting file import » message » microsoft outlook express 6 and locate it to proper dbx folder. Whenever you receive a message outlook express saved this message in .dbx files that contain outlook express folders.
The DBX file can open up easily with following applications
It has the following file signature:- Hex value: DO CF 11 E0 A1 B1 E1 String value: Di.ait.a
DBX is the properitory file format developed for Outlook Express by Microsoft Inc.