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Winmail File Viewer & Opener

Winmail File Viewer & Opener

Extract files from winmail.dat

85 ratings
234 reviews
๐Ÿ”ง Utilities
๐Ÿ’ผ Business
Free
In-App Purchases

Details

  • Released
  • Updated
  • July 9, 2010
  • July 5, 2026

Developer

An Sinh Pham
โœจPromote your app โœจ
Winmail File Viewer & Opener screenshot #1 for iPad
Winmail File Viewer & Opener screenshot #2 for iPad
Winmail File Viewer & Opener screenshot #3 for iPad
๐Ÿงพ$3.99 - $59.99
In-App Purchaseโ†˜๏ธŽ
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Reviews summaryโ†˜๏ธŽ
โญ234
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About

Easily open and extract attachments from winmail.dat files on your Apple devices. This app decodes TNEF files, allowing you to view and save hidden email attachments like PDFs and images directly to your device.

โœ“Open winmail.dat / TNEF files
โœ“Extract hidden email attachments
โœ“Preview common file types
โœ“Save or share attachments
โœ“Works offline and on-device
โœ“Supports iPhone, iPad, and Mac
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What users say

Summarized from real user reviews of Winmail File Viewer & Opener. Based on 85 reviews and a 4.1/5 average, it highlights the 5 positives and 4 negatives reviewers mention most about this Business app.

Positive things

  • ๐Ÿš€Easy to use
  • ๐Ÿ‘Solves a common problem
  • ๐Ÿ’กUseful for business users
  • ๐Ÿš€Works as advertised
  • ๐Ÿ‘Great customer service

Negative things

  • ๐Ÿ›Doesn't work with some file types
  • ๐Ÿ’ฐRequires payment for extended use
  • ๐Ÿ›Compatibility issues with newer iOS versions
  • ๐Ÿ›Crashes or doesn't open files
See all reviews

What's New in Winmail File Viewer & Opener

5.13

July 5, 2026

Winmail File Viewer 5.13 makes Outlook calendar and contact data much easier to use. - Meeting requests hidden inside winmail.dat files can now be recovered as standard `.ics` calendar files. - Contact cards hidden inside winmail.dat files can now be recovered as `.vcf` files. - Add extracted events to Calendar and contact cards to Contacts using native iOS editors. - Calendar and contact attachments now have clearer icons and labels. - Subscription/account status refreshes more reliably after purchase or restore.

More

Subscription plans

Winmail Unlimited (Monthly)

Ideal for regular users!

$9.991 Month
How to cancel Winmail File Viewer & Opener subscription โ‰๏ธ
9

In-App Purchases

$4.99

Decode 10

Decode 10 files

Events

Read more about Content Preview Now Available
Event EndedMajor Update

Content Preview Now Available

Instantly Preview Decoded Winmail.dat Files

Aug 9, 2025 โ€” Aug 25, 2025

Read More

See All

User reviews

Most RecentHighest RatedLowest Rated

Did not work

Hope I cancelled before they charged me.
MidCenturyGalMidCenturyGal

Precio inflado

Con windows pc hay opciones gratuitas.
Imap-popImap-pop

Worthless

Buggy & worthless. Help link doesnโ€™t work. Requires payment for each file opened after the first one, but thereโ€™s no apparent way to do that or to find out how much it costs.
Mynicknameistaken123Mynicknameistaken123

Awesome!

Iโ€™ve never come across these winmail files until yesterday! So finding this app and how easy it was to use was a real relief! Thank you!
MJPENSMJPENS

็พ็ŠถใฎwinmailๆŠฝๅ‡บใ‚ขใƒ—ใƒชใฎไธญใงๅ”ฏไธ€ใพใจใ‚‚ใซๅ‹•ไฝœใ™ใ‚‹

2023ๅนด1ๆœˆใฎๆ™‚็‚นใซใŠใ„ใฆใ€ไป–ใฎๆœ‰ๆ–™่ณผๅ…ฅใ‚ขใƒ—ใƒชใŒใ‚ฏใƒฉใƒƒใ‚ทใƒฅใ—ใŸใ‚Šๆ—ฅๆœฌ่ชžใฎใƒ•ใ‚กใ‚คใƒซๅใŒๆ–‡ๅญ—ๅŒ–ใ‘ใ—ใŸใ‚Šใ™ใ‚‹ไธญใ€ๅ”ฏไธ€ๅฎŒๅ…จๅ‹•ไฝœใ™ใ‚‹ใ€‚
ใŸใ ใ€่ฒทใ„ๅˆ‡ใ‚Šใฎใ‚ขใƒ—ใƒชใงใฏใชใ่‹ฅๅนฒ้ซ˜ใใคใใฎใŒ้›ฃ็‚นใ€‚
W.BurroughsW.Burroughs
See 229 more reviews

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User experience

๐Ÿž

Reported Bugs

3 issues

Crashes when opening certain files

Bug

Blank screen or no content displayed

Bug

Compatibility issues with iPhone 4S and iPad

Bug
โœจ

Requested Features

3 requests

Ability to view and edit files

Feature

Improved file format compatibility

Feature

Automatic updates for new iOS versions

Feature

FAQ

What is a winmail.dat file?

A winmail.dat file, also known as TNEF, is a proprietary format used by Microsoft Outlook and Exchange that can sometimes hide the actual attachments within an email. This app is designed to decode these files and reveal the hidden content.

How do I open a winmail.dat file with this app?

You can import a winmail.dat file directly from your Mail app, the Files app, or by using the Share Sheet. Once imported, the app will process the file, allowing you to view its contents and extract attachments.

Can I extract attachments from winmail.dat files?

Yes, the primary function of this app is to extract attachments from winmail.dat files. You can preview common attachment types like PDFs, DOCX documents, and images, and then save or share them to your Files app or elsewhere.

Is this app compatible with my devices?

This application is designed to work across Apple devices, including iPhone, iPad, and Mac. It offers a lightweight interface for fast access and processes all data on-device, ensuring privacy and offline functionality.

Is there a cost to use this app?

The app is free to download and use, with in-app purchases available. This allows you to access its core functionality for opening and extracting winmail.dat files without an upfront cost.