Outlook Express .DBX File
DBX files (with *.dbx file extension) are the files where Outlook Express stores email messages. They can be found in so-called Outlook Express Store Folder.
To determine Store Folder location click Store Folder button at Tools > Options > Maintenance in Outlook Express.
When you open Store Folder in Windows Explorer, you will see a set of DBX files. Every file contains messages from the appropriate message folder in Outlook Express. For example, Inbox.dbx contains emails from Inbox folder, Sent Items.dbx contains emails from Sent Folder and so on. Folders.dbx is an index of all Outlook Express message folders. It contains a structure of all news groups, mail folders and some synchronization data.
