Best Winmail.dat Opener Alternative Apps

201+ iOS apps curated and reviewed

3.9 avg rating
16 free apps
Updated June 2026

Whether you're new to winmail.dat opener alternative or looking for an upgrade, our curated collection of 201+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Compare top Winmail.dat Opener Alternative Apps (June 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Winmail Viewer - Letter OpenerWinmail Viewer - Letter OpenerFree4.8★ (4.5K)NoYesJul 2026
2Winmail File Viewer & OpenerWinmail File Viewer & OpenerFree4.1★ (85)NoYesJul 2026
3Winmail Dat Opener +Winmail Dat Opener +Free3.8★ (16)YesYesMay 2026
4Winmail.dat Opener & ViewerWinmail.dat Opener & ViewerFreeNoYesJun 2026
5Winmail.dat Viewer & OpenerWinmail.dat Viewer & OpenerFree was $1.995.0★ (5)NoYesJun 2026
6Dat Unpack - Winmail ViewerDat Unpack - Winmail ViewerFreeYesYesMay 2026
7Winmaildat OpenerWinmaildat OpenerFree3.6★ (75)YesYesJul 2026
8Winmail Viewer:for DAT,XPS,MSGWinmail Viewer:for DAT,XPS,MSGFree2.0★ (1)NoYesMay 2026

Top Picks for Winmail.dat Opener Alternative

Winmail Viewer - Letter Opener#1

Winmail Viewer - Letter Opener by Letter Opener GmbH

Open Email, MSG & XPS files
Editor's Choice
🔧 Utilities
4.8(4.5K ratings)
FreeIn-App Purchases
Winmail Viewer - Letter Opener screenshot 1
Winmail Viewer - Letter Opener screenshot 2
Winmail Viewer - Letter Opener screenshot 3
Winmail Viewer - Letter Opener screenshot 4

Easily open and view Winmail.dat, MSG, and XPS email files that are incompatible with most email clients. Convert embedded content like appointments and notes into native iOS formats, and access all attachments within these files.

Winmail File Viewer & Opener#2

Winmail File Viewer & Opener by An Sinh Pham

Extract files from winmail.dat
Strong Contender
💼 Business
4.1😐(85 ratings)
FreeIn-App Purchases
Winmail File Viewer & Opener screenshot 1
Winmail File Viewer & Opener screenshot 2
Winmail File Viewer & Opener screenshot 3

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.

What We Love

  • 🚀 Easy to use
  • 👍 Solves a common problem
  • 💡 Useful for business users
  • 🚀 Works as advertised

Room to Improve

  • 🐛 Doesn't work with some file types
  • 💰 Requires payment for extended use
  • 🐛 Compatibility issues with newer iOS versions
Winmail Dat Opener +#3

Winmail Dat Opener + by ElevenThirteen LLC

View windat odt xps attachment
Worth Considering
🔧 Utilities
3.8(16 ratings)
FreeAdsIn-App Purchases
Winmail Dat Opener + screenshot 1
Winmail Dat Opener + screenshot 2
Winmail Dat Opener + screenshot 3
Winmail Dat Opener + screenshot 4
Winmail Dat Opener + screenshot 5
Winmail Dat Opener + screenshot 6

Easily open and view "winmail.dat" attachments received via email. This utility resolves issues caused by different mail program formatting, allowing you to access important files sent from Microsoft Outlook.

More Winmail.dat Opener Alternative apps to explore

4
Winmail.dat Opener & Viewer
Winmail.dat Opener & Viewer
Winmail.dat Opener & Viewer
Open Winmail.dat Files Easily
Free
🔧 Utilities
(0)
5
Winmail.dat Viewer & Opener
Winmail.dat Viewer & Opener
Winmail.dat Viewer & Opener
Open Winmail.dat & MSG Files
Free
$1.99 | 100% OFF

Easily open and extract attachments from Winmail.dat, .msg, and .oft email files directly on your device. This utility offers a private, offline solution with a one-time purchase, ensuring your data never leaves your phone.

Open winmail.dat (TNEF) filesOpen Outlook .msg and .oft filesExtract attachments (photos, PDFs, Word, Excel)
🔧 Utilities
(5)
paid
6
Dat Unpack - Winmail Viewer
Dat Unpack - Winmail Viewer
Dat Unpack - Winmail Viewer
Open, Extract Winmail Files
Free
📊 Productivity
(0)
7
Winmaildat Opener
Winmaildat Opener
Winmaildat Opener
by Maklabu GmbH
Free

Easily open and access files from winmail.dat attachments on your mobile device. This utility allows you to preview, resend, print, or save contained files without needing an internet connection. An optional purchase removes ads.

Open winmail.dat attachmentsPreview contained filesResend or print files
🔧 Utilities
(75)
free with in-app purchases
8
Winmail Viewer:for DAT,XPS,MSG
Winmail Viewer:for DAT,XPS,MSG
Winmail Viewer:for DAT,XPS,MSG
RAR, Winmail.dat Reader, TNEF
Free

This tool allows users to extract, view, and save the contents of winmaildat, msg, and xps files. It provides a complete solution for managing these file types, including viewing all attachments and rich text messages.

Extract winmaildat, msg, xps filesView file contentsSave extracted files
📊 Productivity
(1)
free
9
Winmail Viewer – DAT Opener
Winmail Viewer – DAT Opener
Winmail Viewer – DAT Opener
Open Winmail.dat & MSG Files
Free

Effortlessly open and view various email attachment formats, including Winmail.dat and MSG files. Extract embedded documents and images, and manage your files with integrated storage. Supports a wide range of email and document types for seamless access.

Open Winmail.dat, MSG, OFT, XPS/OXPS, and EML filesExtract attachments like PDFs and Office documentsView formatted messages with original layout
🔧 Utilities
(15)
freemium
10
Letter Opener - Winmail Viewer
Letter Opener - Winmail Viewer
Letter Opener - Winmail Viewer
by Letter Opener GmbH
Free

Easily open and convert winmail.dat files, which are often unreadable by other email clients. Access all content, including appointments, notes, contacts, and attachments, converting them to native iOS formats. Export files to other applications for seamless integration.

Open Winmail.dat filesConvert appointments, notes, contactsAccess all attachments
📊 Productivity
(772)
free with in-app purchases
11
Winmail Reader
Winmail Reader
Winmail Reader
Open a winmail.dat file
$1.99

Easily open and manage "winmail.dat" attachment files on your iOS device. This app decodes the TNEF format, allowing you to view, save, share, or resend any contained attachments and the original email message.

Decodes winmail.dat filesLists all attachments and email messageInbuilt quick-look preview for attachments
💼 Business
(251)
paid
12
Winmail.Dat Opener · Win Dat
Winmail.Dat Opener · Win Dat
Winmail.Dat Opener · Win Dat
Open Win Mail Dat File, Windat
Free
📊 Productivity
(0)
13
Winmail.dat Opener: Pro Reader
Winmail.dat Opener: Pro Reader
Winmail.dat Opener: Pro Reader
Dat, TNEF, MSG & XPS
$0.99
🔧 Utilities
(0)
14
Winmail Reader Lite
Winmail Reader Lite
Winmail Reader Lite
by RootRise Technologies Pvt. Ltd.
Free

This app decodes "winmail.dat" attachment files, allowing you to open, read, save, or email any contained files. It also extracts the original email message and can create calendar events or contacts from the data.

Decodes winmail.dat filesLists all attachmentsInbuilt quick-look preview
📊 Productivity
(82)
free with in-app purchases
15
Winmail Opener
Winmail Opener
Winmail Opener
by 科 姚
$0.99

Easily open and view the contents of winmail.dat email attachments. This tool allows you to instantly access original email content and any attached files without needing the sender to resend the message.

Open winmail.dat filesView original email contentExport files from winmail.dat
💼 Business
(5)
paid
16
WinDat Opener
WinDat Opener
WinDat Opener
Decodes winmail.dat files
$5.99

Easily open and extract attachments from winmail.dat email files. This utility integrates with your device's file manager and cloud storage, allowing you to preview or open embedded documents and images with other applications.

Decodes all winmail.dat filesiOS 17 and iPadOS 17 supportDrag-and-drop support on iPads
🔧 Utilities
(3)
paid
17
Spike: AI Email & Team Chat
Spike: AI Email & Team Chat
Spike: AI Email & Team Chat
Teamspace & mail for business
Free

This AI-powered app transforms your email into a messenger-like experience for professionals and teams. It streamlines inbox management with smart summaries, AI-assisted replies, and one-tap actions. Collaborate seamlessly with team chat, shared inboxes, and integrated tools.

AI-powered email summariesAI-assisted reply draftingInstant email translation
📊 Productivity
(4.3K)
free with in-app purchases
18
myMail box: email client app
myMail box: email client app
myMail box: email client app
E-mail for Gmail, Hotmail, AOL
Free

Consolidate and manage multiple email accounts from various providers in a single, user-friendly interface. Enjoy customizable notifications, enhanced security features, and efficient search capabilities to streamline your communication.

Unified inbox for multiple email accountsCustomizable push notificationsEmail thread view
📊 Productivity
(17K)
free with in-app purchases
19
Clean Email – Inbox Cleaner
Clean Email – Inbox Cleaner
Clean Email – Inbox Cleaner
Unsubscribe, Delete, Organize
Free

This app helps you declutter your inbox by unsubscribing from unwanted senders, bulk deleting emails, and automating cleanup. It offers features to block senders, get data breach alerts, and organize your mail efficiently. Take control of your inbox and save time daily.

Bulk delete emailsUnsubscribe from sendersBlock and screen senders
📊 Productivity
(3.7K)
free with in-app purchases
20
Proton Mail - Encrypted Email
Proton Mail - Encrypted Email
Proton Mail - Encrypted Email
Fast, private & secure mail
Free

This encrypted email service from Switzerland prioritizes user privacy with end-to-end encryption. It offers robust security features to protect your communications from phishing, spam, and tracking, allowing you to manage your inbox with ease.

End-to-end encryptionPassword-protected emailsMultiple account support
📊 Productivity
(45K)
free with in-app purchases

FAQ about Winmail.dat Opener Alternative

What are the best winmail.dat opener alternative apps for iPhone?
Winmail Viewer - Letter Opener tops our winmail.dat opener alternative apps ranking as of June 2026, with a 4.8-star average from 4.5K App Store ratings, and it's free to download.
Yes — 16 of the top winmail.dat opener alternative apps we rank are free to download, including Winmail Viewer - Letter Opener and Winmail File Viewer & Opener.
Winmail Viewer - Letter Opener has no ads and offers in-app purchases, according to its App Store listing as of June 2026.
We track 201+ winmail.dat opener alternative apps on the iOS App Store as of June 2026, ranked by rating, recency, and analysis of real user reviews.
This app allows you to open and view Winmail.dat, MSG, and XPS email files that are typically unreadable by other email applications. It converts embedded content like appointments and notes into formats compatible with your iOS device and provides access to all attachments.
Simply tap on the Winmail.dat file when you receive it, and the app will open it automatically. It then processes the file to make its content accessible, including any attachments or embedded items like calendar events.