Best Windat Opener Apps

127+ iOS apps curated and reviewed

3.6 avg rating
17 free apps
Updated November 2026

The best windat opener apps on iPhone average 3.6★ across 127+ titles — we've ranked them by what real users actually keep on their phones. Updated November 2026.

Compare top Windat Opener Apps (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Winmail Viewer - Letter OpenerWinmail Viewer - Letter OpenerFree4.7★ (5K)NoYesNov 2026
2Winmaildat OpenerWinmaildat OpenerFree3.5★ (77)YesYesOct 2026
3WinDat OpenerWinDat Opener$5.992.3★ (3)NoNoOct 2026
4Winmail Dat Opener +Winmail Dat Opener +Free3.5★ (18)YesYesOct 2026
5Winmail Viewer – DAT OpenerWinmail Viewer – DAT OpenerFree4.8★ (20)NoYesNov 2026
6Winmail.dat Opener: Pro ReaderWinmail.dat Opener: Pro Reader$0.99—NoNoSep 2026
7Winmail.dat Opener · ViewerWinmail.dat Opener · ViewerFree5.0★ (6)NoYesOct 2026
8Winmail File Viewer & OpenerWinmail File Viewer & OpenerFree4.1★ (91)NoYesNov 2026

Top Picks for Windat Opener

Winmail Viewer - Letter Opener#1

Winmail Viewer - Letter Opener by Letter Opener GmbH

Open Email, MSG & XPS files
Editor's Choice
🔧 Utilities
4.7(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.

3.5😊(77 ratings)
FreeAdsIn-App Purchases
Winmaildat Opener screenshot 1
Winmaildat Opener screenshot 2
Winmaildat Opener screenshot 3

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.

What We Love

  • 👍 Easy to use
  • 🚀 Works as advertised
  • 💰 Free with no hidden charges
  • 📁 Opens winmail.dat files
  • 🎉 Solves a common problem

Room to Improve

  • 🐛 Doesn't work for some users
  • 🗑️ Can't delete opened files
  • 🔄 Unreliable file handling
  • 🔒 Security concerns
WinDat Opener#3

WinDat Opener by Alexander McGuffog

Decodes winmail.dat files
Worth Considering
🔧 Utilities
2.3(3 ratings)
$5.99
WinDat Opener screenshot 1

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.

More Windat Opener apps to explore

FAQ about Windat Opener

What are the best windat opener apps for iPhone?
Winmail Viewer - Letter Opener tops our windat opener apps ranking as of November 2026, with a 4.7-star average from 5K App Store ratings, and it's free to download.
Yes — 17 of the top windat opener apps we rank are free to download, including Winmail Viewer - Letter Opener and Winmaildat Opener.
Winmail Viewer - Letter Opener has no ads and offers in-app purchases, according to its App Store listing as of November 2026.
We track 127+ windat opener apps on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.