|File Type||Outlook Express E-mail Folder|
|File Format||Proprietary (Microsoft)|
|Usage||Referenced by an application; not meant to be opened manually|
|Popularity||★ ★ ★ ★ ☆ Common|
Folder containing e-mail messages for a specific mailbox in Outlook Express; named "Inbox.dbx," "Sent Items.dbx," etc; stored in the Store Folder within the Documents and Settings directory; DBX files may be copied to another folder in order to backup e-mail messages.
Important: DBX files should not be opened or edited manually since they can become corrupted and cause Outlook Express to not function correctly.