Best Winmail File Viewer Apps

177+ iOS apps curated and reviewed

4.2 avg rating
19 free apps
Updated May 2026

Winmail Viewer is the household name in winmail file viewer, but it's far from the only option. We track 177+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Top Picks for Winmail File Viewer

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 File Viewer apps to explore

4
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
5
Microsoft Outlook
Microsoft Outlook
Microsoft Outlook
Secure Email, Calendar & Files
Free

Consolidate all your email accounts and calendars into one streamlined application. Manage your inbox, schedule meetings, and access files from various cloud services. Enhance productivity with AI-powered writing assistance and smart inbox features.

Unified inbox for multiple email accountsSmart inbox sortingQuick swipe actions
📊 Productivity
(9M)
free with in-app purchases
6
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
7
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
8
Winmail.dat Opener & Viewer
Winmail.dat Opener & Viewer
Winmail.dat Opener & Viewer
Open Winmail.dat Files Easily
Free
🔧 Utilities
(0)
9
Dat Unpack - Winmail Viewer
Dat Unpack - Winmail Viewer
Dat Unpack - Winmail Viewer
Open, Extract Winmail Files
Free
📊 Productivity
(0)
10
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
11
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
12
My File Organizer
My File Organizer
My File Organizer
Organize Files & Documents
Free

Consolidate and manage local and cloud files within one app. View, save, and transfer documents, presentations, media, and more across multiple cloud services and your device.

Unified local and cloud file managementInbuilt file viewer and playerTransfer files between cloud drives
🔧 Utilities
(6.5K)
ad-supported
13
OpenEML - EML Reader & Viewer
OpenEML - EML Reader & Viewer
OpenEML - EML Reader & Viewer
Open Email, MSG & Attachments
Free

Easily open and manage email files (.eml, .msg, .oft) on your iPhone or iPad. Read, search, and organize messages with attachments in a clean interface. All files stay on your device.

Open EML, MSG, OFT filesView email detailsRead HTML and plain-text content
🔧 Utilities
(22)
free with in-app purchases
14
Microsoft Azure
Microsoft Azure
Microsoft Azure
Azure – anytime, anywhere
Free

Manage and monitor your cloud resources from anywhere. Receive real-time notifications and alerts for critical health issues. Take immediate corrective actions on your virtual machines and web apps directly from your mobile device.

Monitor cloud resource statusView critical metricsReceive notifications and alerts
💼 Business
(2.8K)
free
15
Filemail – File Transfer App
Filemail – File Transfer App
Filemail – File Transfer App
Share Original Quality Files
Free

Easily send large files, videos, and any other content quickly and securely. Supports end-to-end encryption for sensitive data and offers a free tier for up to 5 GB transfers.

Send large files up to 250 GBOptional end-to-end encryptionShare any file type
📊 Productivity
(10K)
free with in-app purchases
16
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
17
File Manager & Browser
File Manager & Browser
File Manager & Browser
Manage Files & Documents
Free

This app acts as a virtual USB drive and file manager for your iPhone and iPad. It allows you to easily view, organize, and share various document types, including Office and iWorks files, as well as media. It also offers cloud integration and secure file protection.

Integrated PDF ReaderMicrosoft Office & Apple iWorks supportMultiple cloud integrations
🔧 Utilities
(51K)
free with in-app purchases
18
File Viewer
File Viewer
File Viewer
by Sharpened Productions
Free

Easily open and view over 100 different file types, including documents, images, videos, and archives. Browse files stored on your device or in iCloud Drive. This app also identifies unknown files and displays detailed file information.

Open 100+ file typesBrowse device and iCloud DriveBuilt-in readers for Office, PDF, and images
🔧 Utilities
(3)
free
19
Browser & File Manager
Browser & File Manager
Browser & File Manager
by 书穗 林
Free

This app combines a web browser, download manager, and file manager with built-in viewers for photos and documents. It allows for offline web page saving, background downloading, archive extraction, and secure access with a passcode.

Integrated web browser with multi-page supportDownload manager with background downloading and resume capabilityFile manager with folder support and archive extraction
🔧 Utilities
(301)
free
20
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