Univik Foxmail Converter for Windows
Quick Facts
Key Features
Supports Foxmail .fox Archives
Mail Archive creates a .fox file per account. Univik Software supports those files, so an old archive needn't wait for Foxmail's Import menu.
Quick Facts
At a Glance FOX file converter facts in five numbers for file type, files per account, menu groups, version and price
.fox
Archive Files
Mail Archive creates one .fox file per account.
1
File per Account
Two accounts give two .fox files in the folder you choose.
5
Export Groups
Email Files, Document Files, Email Services, Email Clients and Scripts.
6.10
Current Version
Build 6.10 targets 64-bit editions of Windows 10 and 11. Install .NET Framework 4.8 first.
$39
Starting Price
Trial mode exports 10 items per folder. One licence covers 2 PCs for $39.
Key Features
What the FOX File Converter Does Eight tasks for archives that Foxmail created
One Archive per Account
One .fox file covers one account. Convert the files one at a time and name output folders after their owners, so two mailboxes never mix.
Choose the Output on the Export Menu
Choose PST for Outlook and MBOX or the Thunderbird option for Thunderbird. Gmail, Office 365 and IMAP take an upload. Preview shows what goes out before you save a file.
PDF for a Lasting Record
PDF output creates one PDF per email, with attachments beside it or embedded. PDF software opens it long after Foxmail is gone.
Work From a Copy of the .fox File
Keep the first archive as your original. Copy it to a working folder before you start, so a wrong click costs you nothing.
Preview the Mail Before You Convert
Open shows the mail inside the .fox file with a preview of the messages. Check an old archive first and convert it only when it matches what you expect.
No Foxmail on the PC
Univik Software opens a .fox file with no Foxmail on the PC. New laptops and spare desktops work too. Only making the archive needs Foxmail.
Test on One Small Archive First
Date Range in Mail Archive limits an archive to a short span of mail. Open that small archive on the free trial and check the preview before you commit to a decade of mail.
Problem
Why Your FOX File Is Hard to Reuse
.fox is the extension of Foxmail's own archive. Other mail programs don't know it, so a double click gets you nowhere. Both usual options have a catch.
Foxmail's Import Menu Keeps Mail Inside Foxmail
Foxmail 7.2 added the import of .fox files in January 2014, according to the changelog on Foxmail for Windows. Guides describe a restore under the account. Mail stays inside Foxmail, so Outlook and Thunderbird still can't open it.
Extension Lookups Point Several Ways
Lookup sites tie .fox to InfoZoom data, Furcadia game art and FoxPro code besides Foxmail. Those four open in four different programs. Check where your file came from.
Convert the .fox File Into an Open Format
Univik Software supports .fox files. Convert FOX file archives and the mail lands in a format your next program opens. Keep the original until you open the output and check the folders.
Inside the Archive
What a Foxmail Archive Contains
.fox
Archive File
Mail Archive drops one .fox file per configured account into the folder you choose. Foxmail 7.2.25.563 on a Univik test PC shows a Browser button beside that folder field.
Date Range
Mail Range
Mail Archiver offers a Date Range dropdown that starts at Three months ago. Your .fox file therefore covers the range you chose, not always the full account.
Storage
Live Copy
Foxmail keeps live mail in the Storage folder and Mail Archive leaves it in place. The Delete mails after archive box is unticked in the Foxmail 7.2 dialog. Where Does Foxmail Store Emails? maps that folder.
1
Make or Find the .fox File
In Foxmail 7.2 open Menu and then Tools. Choose Mail Archive and press Start Archiving. Foxmail creates a .fox file per account in the folder named in the dialog.
2
Open It and Choose the Output
Start Univik Foxmail Converter, click Open and select the .fox file to see a preview of its mail. Open the Export menu and choose Email Files for PST, MBOX or EML. Choose Document Files for PDF or Email Services for Gmail, Office 365 and IMAP.
3
Start and Open the Result
Start the conversion. Open the output in Outlook, Thunderbird or PDF software and compare folder names and message counts with Foxmail before you delete the source.
Download the Free Trial
Windows only · 10 items per folder in the trial · refund within 30 days on licences
Typical Uses
Typical UsesWhere a FOX File Converter Earns Its Keep
Leaving Foxmail for Outlook
You archived your accounts before the switch. Convert all .fox files to PST and Outlook opens them. How to Move Foxmail to Outlook has the import steps.
Old Archives on a Spare Drive
Years of .fox files sit on an old drive and the PC that made them is gone. Convert them while you still know whose file is whose. Move Foxmail to a New Computer covers the same question.
Records Folder
Contracts and client mail need a copy that opens without Foxmail. Convert to PDF for one PDF per email. Keep the archive as the original.
Before You Start
What to Check Before You Convert FOX Files
Mail Archiver dialog
In Foxmail 7.2.25.563 the dialog shows an Account dropdown, a Date Range dropdown, a folder field with a Browser button, a Delete mails after archive box and Start Archiving. Leave the Delete box unticked until you have opened the result and know it holds the mail you expect.
Copy the archives to a working folder on a drive with free space. Univik's test copy has two IMAP mailboxes with 2,876 messages in one and 2,548 in the other. Archiving it should give two .fox files.
Univik has not timed a .fox conversion yet, so convert one small archive first to learn the pace.
Side by Side
Three Ways to Open FOX File Mail
| What you need | Foxmail Import menu | Foxmail Export Mail | Univik Foxmail ConverterTRIAL |
|---|---|---|---|
| Starts from a .fox file | Yes | No, needs mail inside Foxmail | Yes |
| Price | No charge | No charge | From $39 |
| Result opens in Outlook | No | EML files only | PST |
| Result opens in Thunderbird | No | EML files only | MBOX or Thunderbird option |
| One PDF per email | No | No | Yes |
Import suits mail that stays in Foxmail. Univik Software fits once the mail has to leave Foxmail.
What You Need
System Requirements FOX file converter software from Univik needs a 64-bit PC with .NET Framework 4.8
Windows Version
Windows 11 or Windows 10 in the 64-bit edition. .NET Framework 4.8 arrives through Windows Update on both.
Your .fox Files
Copy the .fox files from the folder that Mail Archive used. Univik checked the menu and dialog on Foxmail 7.2.25.563 only.
Free Disk Space
Check the size of your .fox files before you start. Output folders need room too.
Internet Access
Installer downloads and uploads to Gmail, Office 365 and IMAP need a connection.
| Software Information | Univik Foxmail Converter for .fox archives |
| Version | 6.10 (Latest) |
| Licence | Free trial, then $39 buys 2 PCs |
| Platform | Windows 10 or 11 (64-bit) |
| Framework | .NET Framework 4.8 or higher, installed first |
| Source Data | .fox files from Foxmail Mail Archive and the Storage folder of Foxmail 7.2, 7.1, 7.0 and 6 |
| Trial Limit | 10 items per folder |
| Not Covered | Mac, because the converter is a Windows program |
Questions
FOX File Converter Questions
.fox is the extension of the archive that Foxmail’s Mail Archive tool creates. Foxmail 7.2 added the import of .fox archive files on 23 January 2014, according to the changelog on Foxmail for Windows. Other programs use the extension for unrelated data, so check where your file came from.
Click Open in Univik Foxmail Converter, choose the .fox file and look over the preview. Choose an output on the Export menu, start the conversion and compare message counts with Foxmail before you delete the source. Mail still inside Foxmail can use Export Mail instead, as How to Export Foxmail Emails shows.
Yes, choose Open and select the file. Univik Software supports .fox files made by Foxmail’s account archive and shows the mail in a preview. Univik checked the menu path and the one file per account rule in Foxmail 7.2.25.563 and has not timed a .fox conversion yet, so a first run on one small archive teaches you the pace.
Five Export menu groups apply to .fox files. Email Files covers EML, MBOX and PST while Document Files cover PDF, HTML, TEXT and CSV. Email Services lists Gmail, Office 365 and IMAP while Email Clients lists Thunderbird and Scripts lists SQL.
No, Univik Software opens a .fox file without Foxmail on the PC. Foxmail only makes the archive. Someone else can make it and send you the files.
No, Mail Archive creates one .fox file per account, so two accounts give two .fox files. Convert the files one at a time and keep the output folders apart.
Outlook opens PST files directly. Microsoft sets the default Unicode PST limit at 50 GB in Configure the size limit for both .pst and .ost files in Outlook, so one PST per account is a sound habit. Thunderbird imports MBOX files and the Export menu has a Thunderbird option.
Trial mode costs nothing and handles 10 items per folder. Licences start at $39 for 2 PCs. Refunds are available within 30 days and licences include one year of free upgrades.
Several programs share the extension. FileInfo and FILExt list InfoZoom data files, Furcadia art files and FoxPro code files under .fox besides Foxmail archives. Univik Software handles Foxmail archives only and FOX File Viewer shows how to tell which kind you have.
More Tools
Other Converters for Foxmail Mail
Compiled by Univik Product team
Univik product staff checked these details on 22 October 2026 against the software and the changelog on Foxmail for Windows. The Mail Archiver dialog and its menu paths were seen on Foxmail 7.2.25.563 on a Univik test PC.
Univik confirmed that Mail Archive creates one .fox file per configured account and that the converter supports those files. Univik has not timed a .fox conversion yet. Test claims say so where it matters.
Updated on 22 October 2026
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