---
title: "Winmail Viewer - Letter Opener - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "Open Winmail.dat, MSG and XPS files with just a tap.   ABOUT A winmail.dat file or MSG file is an email from Microsoft Outlook that can not be read by other email applications. It needs to be converte"
---

# Winmail Viewer - Letter Opener — United States
> Open Email, MSG & XPS files

![Winmail Viewer App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/24/70/49/24704949-ed46-fe43-4317-d40730e06d39/AppIcon-0-0-1x_U007epad-0-1-0-sRGB-85-220.png/400x400bb.png)

**Developer:** [Letter Opener](https://apptail.io/developer/letter-opener-eWPb) (Germany)
**Category:** Utilities
**Rating:** 4.8/5 (4,681 ratings)
**Price:** Free
**Bundle ID:** com.restoroot.Letter-Opener
**Store:** Apple App Store
**Country:** United States
**Version:** 17.1.2 (released 2026-10-03)
**Original Release:** 2010-12-31

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id411897373)
**AppTail Page:** [https://apptail.io/app/winmail-viewer-letter-opener-zuMd/united-states](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/united-states)

## Winmail Viewer Description
Open Winmail.dat, MSG and XPS files with just a tap. 

ABOUT
A winmail.dat file or MSG file is an email from Microsoft Outlook that can not be read by other email applications. It needs to be converted for the content to be accessible. 

Letter Opener does that with a simple tap!

With over 10 years experience (and a special dislike for winmail.dat files) we made sure that working together with Microsoft Outlook and Windows users can be simple and seamless.

FEATURES
- Open Winmail.dat and MSG files and convert appointments, notes, contacts etc. to iOS native formats.

- Get access to all attachments in Winmail.dat files.

- Export files to another app.

SUPPORT
We provide direct personal support, so don’t hesitate to contact us if you have any questions or comments: support@winmail.help

Thanks for helping us to keep improving Letter Opener!

TERMS OF USE


## Winmail Viewer Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/d2/d3/26/d2d326e0-1161-16eb-3bcc-92b22647a189/a64c1695-ea64-4385-934e-b8610392cb15_LetterOpener-iPhone65-01.png/2778x1284.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/ac/3b/95/ac3b956a-5437-8c40-09f3-7301d4b92022/64ab0bbc-2b84-4ff8-aefb-7980ad1c20ad_LetterOpener-iPhone65-03.png/2778x1284.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/2e/4d/0c/2e4d0ce9-be80-d068-2a82-67106598fb71/b156cd75-2871-400f-b4e9-217ab2b02776_LetterOpener-iPhone65-04.png/2778x1284.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/0b/a7/11/0ba711ae-daea-d8bb-59c1-0921fecbf001/06ac35a8-8256-4f94-84fe-f10d7a3c4162_LetterOpener-iPhone65-05.png/2778x1284.png)

## Winmail Viewer Rating Breakdown in United States
- 5 stars: 4,073 (87%)
- 4 stars: 353 (8%)
- 3 stars: 100 (2%)
- 2 stars: 34 (1%)
- 1 stars: 121 (3%)

## Winmail Viewer Reviews in United States

### ***** "Perfect"
A perfect solution for viewing emails in winmail.dat format.
-- Tasbir589, 2025-01-04

### ***** "Great asset"
Easy, intuitive, very helpful for iOS users.
-- Drewcentfl, 2025-01-03

### **--- "First time attempting use"
I don’t know if this will cost me anything or not. Not easy to find get or use. Will never probably use it again. So I downloaded it and am now deleting it.
-- rvrbeach403, 2024-12-23

### ***** "Whew"
I am the only one who receives forwarded pdfs as winmail.dat from someone. This is a blessing.

I believe it's caused by her outlook settings but not sure how to fit it. So you save the day!
-- Sellerish, 2024-12-22

### ***** "Simple - and works"
Every time I get a calendar invite from someone using Outlook on a PC, my Mac can’t read it…. So I try a Winmail app…. Without success (in some cases, after purchasing “premium” version… In frustration, I tried Letter Opener, and bang! It worked… dragged the file into Letter Opening which immediately created a calendar appointment.  Simple task… simple solution….
-- StarbucksII, 2024-12-21

### ***** "Good app"
Works well so far but I haven’t used it that much.
-- Simeoniii, 2024-12-20

### ***** "WORKS!"
This app works great! It opened my pictures just like it said it would.
-- pfrmjr, 2024-12-19

### ***** "Is amazing to use"
I love using this app it’s so easy and doesn’t use ads
-- @4$:&@, 2024-12-18

### ***** "Opens Winmail"
Works well
-- soul2truth, 2024-12-18

### ***** "Super easy and works perfectly!"
Great helper app to view annoying win mail.dat files and to extract the embedded information. Thank you!
-- GlobalRoamer, 2024-12-12

[View all Winmail Viewer reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)

## Winmail Viewer In-App Purchases
| Item | Price |
|------|-------|
| MSG Premium | $19.99 |
| XPS Premium | $19.99 |
| Professional | $49.99 |
| Letter Opener | $9.99 |
| Winmail.dat Premium | $19.99 |
| File Extension Premium | $19.99 |


## Winmail Viewer Discovered Keywords
- winmail file viewer
- winmail
- windat opener
- winmail viewer
- letter opener
- winmail dat opener
- winmaildat opener
- xps converter


## Winmail Viewer Available In
- [United States](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/united-states)
- [Germany](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/germany)
- [Japan](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/japan)
- [Canada](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/canada)
- [Australia](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/australia)
- [United Kingdom](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/united-kingdom)
- [France](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/france)
- [Switzerland](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/switzerland)
- [Italy](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/italy)
- [Netherlands](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/netherlands)
- [Austria](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/austria)
- [Spain](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/spain)
- [South Africa](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/south-africa)
- [Belgium](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/belgium)
- [Taiwan](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/taiwan)
- [New Zealand](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/new-zealand)
- [Mexico](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/mexico)
- [India](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/india)
- [Israel](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/israel)
- [Poland](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/poland)
- [Türkiye](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/turkey)
- [Norway](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/norway)
- [Sweden](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/sweden)
- [Czechia](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/czechia)
- [China](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/china)
- [Denmark](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/denmark)
- [Portugal](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/portugal)
- [Vietnam](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/vietnam)
- [Greece](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/greece)
- [Hong Kong SAR China](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/hong-kong)
- [Brazil](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/brazil)
- [Ireland](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/ireland)
- [South Korea](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/south-korea)
- [Egypt](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/egypt)
- [Indonesia](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/indonesia)
- [Luxembourg](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/luxembourg)
- [Malaysia](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/malaysia)
- [Chile](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/chile)
- [Croatia](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/croatia)
- [Slovakia](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/slovakia)
- [Romania](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/romania)
- [Saudi Arabia](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/saudi-arabia)
- [Singapore](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/singapore)
- [Philippines](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/philippines)
- [United Arab Emirates](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/united-arab-emirates)
- [Hungary](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/hungary)
- [Thailand](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/thailand)
- [Colombia](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/colombia)
- [Argentina](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/argentina)
- [Finland](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/finland)
- [Ukraine](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/ukraine)
- [Pakistan](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/pakistan)
- [Estonia](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/estonia)
- [Cyprus](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/cyprus)
- [Slovenia](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/slovenia)
- [Bulgaria](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/bulgaria)
- [Nigeria](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/nigeria)
- [Peru](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/peru)
- [Lebanon](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/lebanon)
- [Dominican Republic](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/dominican-republic)
- [Namibia](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/namibia)
- [Azerbaijan](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/azerbaijan)
- [Lithuania](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/lithuania)
- [Mauritius](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/mauritius)
- [Latvia](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/latvia)
- [Kenya](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/kenya)
- [Kuwait](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/kuwait)
- [Kazakhstan](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/kazakhstan)
- [Sri Lanka](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/sri-lanka)
- [Panama](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/panama)
- [Bermuda](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/bermuda)
- [Senegal](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/senegal)
- [Uruguay](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/uruguay)
- [Malta](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/malta)
- [Iceland](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/iceland)
- [Tunisia](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/tunisia)
- [Botswana](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/botswana)
- [Nepal](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/nepal)
- [Madagascar](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/madagascar)
- [Ghana](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/ghana)
- [Ecuador](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/ecuador)
- [Paraguay](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/paraguay)
- [Armenia](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/armenia)
- [Cayman Islands](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/cayman-islands)
- [Suriname](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/suriname)
- [Algeria](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/algeria)
- [North Macedonia](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/north-macedonia)
- [Uganda](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/uganda)
- [Brunei](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/brunei)
- [Oman](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/oman)
- [Barbados](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/barbados)
- [Russia](https://apptail.io/app/winmail-viewer-letter-opener-zuMd/russia)

---

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