Quick answer
- Why it fails: DBX is an Outlook Express format. Current Outlook has no DBX import, and renaming a DBX file does nothing.
- Free ways: Outlook 2010 and older import Outlook Express mail by wizard. For newer Outlook, import DBX into Windows Live Mail, then export to Outlook through Microsoft Exchange.
- Bulk: DBX to PST software converts files or folders to PST with folders and attachments kept. Import that PST into any Outlook.
You double-click a DBX file and Outlook shows nothing. Years of Outlook Express mail sit in a folder or on an old CD, and no menu in your Outlook says DBX. Outlook Express saved every mail folder as its own DBX file, and Microsoft ended that program long ago. Your mail is still there, and three ways below get it out. Below are three ways to open DBX file in Outlook, from a free wizard to batch conversion. All three also work for DBX files you import to Outlook from old backups.
Where are DBX files stored?
Outlook Express keeps one DBX file per mail folder, such as Inbox.dbx and Sent Items.dbx, in a hidden store folder. Find it before any method below.
- In Outlook Express, open Tools, Options, Maintenance and select Store Folder. Note your path.
- On Windows XP, that path sits under
C:\Documents and Settings\<UserName>\Local Settings\Application Data\Identities\{GUID}\Microsoft\Outlook Express. - Turn on hidden files and folders in Windows Folder Options to see it.
- Copy your full store folder to a normal folder, including
Folders.dbx, and work on that copy. - If you copied from a CD or DVD, clear Read Only attribute in file Properties.
A Microsoft MVP gave these steps on Microsoft Q&A. A Wintips guide shows same XP path.
How to open DBX file in Outlook 2010 and older?
Outlook 2010 and older include an import wizard for Outlook Express mail. It costs nothing and needs your copied store folder.
- If Outlook Express is on that same PC, open Outlook 2010 and select File, Open, Import. Choose Import Internet Mail and Addresses, select Outlook Express, tick Import mail and finish its wizard.
- If Outlook Express is on another PC, copy your store folder to your Outlook PC first.
- In Outlook 2010, select File, Open, Import and choose Import from another program or file.
- Select Outlook Express 4x, 5x, 6x or Windows Mail and browse to your copied folder.
- Select Save in Inbox or finish wizard, then check folders in Outlook.
Windows Report shows these Outlook 2010 import steps. Newer Outlook builds drop that wizard, so Outlook 2013 needs another route. A Slipstick forum user with Outlook 2013 found no direct DBX import, and answers sent them through another mail program or an older Outlook.
Catch: you need Outlook 2010 or older, and account settings do not transfer. Write them down and add accounts again.
How to open DBX file in Outlook 2013 and newer with Windows Live Mail?
Import DBX into Windows Live Mail, then export those folders to Outlook through Microsoft Exchange. Microsoft no longer supports Windows Live Mail, so use it only for one job.
- Install Windows Live Mail on a Windows PC. Open it without creating an account.
- Select File, Import, Messages and choose Microsoft Outlook Express 6.
- Browse to your copied store folder. Import all folders or select some.
- Open classic Outlook and set it up with your account. Keep it open.
- In Windows Live Mail, select File, Export email, Email messages and choose Microsoft Exchange.
- Confirm that prompt, select folders to export and wait. Large stores take a long time.
- Look in Outlook for a folder named after your Windows Live Mail account, level with Inbox and Sent Items.
Steps 5 to 7 follow a migration guide on HowTo-Outlook, which says to use 32-bit Outlook for export and warns that Outlook's own Import can reset Received dates. One reader of a Wintips guide lost over 1,000 messages and its author linked that to Outlook's PST size limit. Our guide on Windows Live Mail to Outlook covers more on that route.
Catch: that chain needs two programs, an old installer and classic Outlook. Large stores export slowly and folders move one batch at a time.
How to open DBX file in Outlook in bulk?
Use Corbett DBX to PST Converter to convert DBX files to PST, then open that PST in any Outlook. It converts single DBX files or folders full of them, previews mail in four views and keeps folders, attachments, inline images, dates and formatting. It needs neither Outlook Express nor Outlook. Windows 11, 10, 8 and 7 are supported, and a free demo lets you test first.
Steps to convert DBX to PST with software
- Install Corbett DBX to PST Converter on a Windows PC and start it as administrator.
- Select Open, then Email Data Files, then DBX Files. Select Choose File or Choose Folder and browse to your copied DBX files.
- Tick DBX files you want in its folder tree. Skip
Folders.dbx, which stores only your folder list. - Check mail in Content, Message header, Raw message or Hex view.
- Use Quick Search for a keyword, or Advanced Search for Subject, date range, To, From, Cc or Bcc.
- Select Export, choose PST, set a destination and press Save.
Then add your PST to Outlook. Our guide on how to import PST to Outlook covers every Outlook version. You can also convert that load to MBOX, EML, MSG, PDF, HTML or TEXT, or send mail to Gmail or Office 365. A PST leaves out Outlook Express settings, mail rules, address book and account passwords. Convert large DBX files soon, because Outlook Express files grow unreliable near 2 GB, and keep a copy of every original.
Which way to open DBX file in Outlook is best?
Use Outlook 2010's wizard for one folder on an old PC, Windows Live Mail for a free path into newer Outlook and software for many files, filters or other formats.
| Way to open DBX file in Outlook | Needs | Works with | Volume | Cost |
|---|---|---|---|---|
| Outlook import wizard | Outlook 2010 or older | Old Outlook only | Folder by folder | Free |
| Windows Live Mail export | Windows Live Mail and classic Outlook | Newer classic Outlook | Slow for large stores | Free |
| Corbett DBX to PST Converter | Windows PC, DBX files | Any Outlook that opens PST | Batch in one run | Free demo, then from $99 |
Prefer Thunderbird? See how to import DBX to Thunderbird.
Why does opening a DBX file in Outlook fail?
Outlook does nothing when you open a DBX file
No current Outlook reads DBX, and renaming a DBX file does nothing. Convert it to PST or import it through Windows Live Mail.
Import finds no DBX files in Outlook
Point import at your store folder, not at one DBX file. Include Folders.dbx and turn on hidden items so you can see them. An eM Client forum user with .dbx files on a CD hit that same wall. A reply advised saving files in a separate folder and pointing import at one folder above them.
Files copied from CD are locked
Clear Read Only attribute in Properties, then retry.
Some mail is missing after you import DBX to Outlook
Check Outlook's PST size limit and create a new PST for large stores. Convert files near 2 GB early, because Outlook Express files grow unreliable there.
Contacts and accounts did not come across
DBX holds mail only. Export contacts from Outlook Express as WAB or CSV and add accounts again by hand.
What to do after you open DBX file in Outlook?
Compare folder names and message counts with your originals, then open mail with attachments. Keep your DBX copies until counts match. Want a quick look inside a finished PST? See how to open PST file. Need single messages as files? See how to convert DBX to EML.
Our view
Check your Outlook version before anything else. On Outlook 2010 or older, its built-in wizard is enough. Newer Outlook has no DBX route, so a Windows Live Mail chain works but is fragile, and a converter is faster past a few folders. Copy your store folder first and work only on that copy.
Key takeaways
- DBX belongs to Outlook Express, and current Outlook cannot open it directly.
- Copy your full Outlook Express store folder, including
Folders.dbx, before you open DBX file in Outlook. - Outlook 2010 and older import Outlook Express mail by wizard.
- Newer Outlook gets DBX mail through Windows Live Mail and a Microsoft Exchange export.
- DBX to PST software converts in batch, then any Outlook opens that PST.
Questions about open DBX file in Outlook
How do I open DBX file in Outlook?
Use Outlook 2010's Outlook Express import, import DBX into Windows Live Mail and export to Outlook, or convert DBX to PST with software and open that PST.
Can Outlook open a DBX file directly?
No. DBX is an Outlook Express format, and current Outlook has no import for it. Renaming does nothing.
What is a DBX file?
Outlook Express saved every mail folder as its own DBX file, such as Inbox.dbx and Sent Items.dbx.
Where does Outlook Express store DBX files?
In a hidden store folder. Find it in Outlook Express under Tools, Options, Maintenance, Store Folder.
Which Outlook versions can import Outlook Express mail?
Outlook 2010 and older have an import wizard. Newer versions need Windows Live Mail or a converter.
Do I need Outlook Express to convert DBX files?
No. Corbett DBX to PST Converter loads DBX files without Outlook Express or Outlook installed.
What is Folders.dbx?
An index of your folder list with no messages. Include it when you import a store folder, but skip it in a converter.
Which formats does Corbett DBX to PST Converter save?
PST, MBOX, EML, MSG, PDF, HTML and TEXT, plus direct transfer to Gmail and Office 365.
Does free demo convert all my DBX files?
No. Demo converts 10 data files. Open that PST in Outlook before you buy a licence.
Is there a Mac version of Corbett DBX to PST Converter?
No. It is Windows only, for Windows 11, 10, 8 and 7. Start it as administrator.