Winmaildat Opener

Name: Winmaildat Opener
Rating: 3.6 (76 reviews)
Author: Maklabu GmbH

By: Maklabu GmbH

Utilities

Features & Capabilities

Winmail.dat Opener is a free Chrome extension that registers as a handler for .dat files and lets you open winmail.dat attachments right from your email apps. When you tap a winmail.dat attachment, the extension launches and reveals the files inside. You can preview each item, save it to your device, resend, or print a selected file. Extraction happens on your device and does not require an internet connection.

This extension is ad-supported and asks for Internet access for ads, even though the actual extraction workflow is offline. There is an optional in-app purchase to remove ads. Not every file ending in .dat is a winmail.dat, so please confirm the file type if you encounter issues. The app is free to use with no required purchases for core functionality.

User Growth & Download Statistics

App Privacy & Security Data Developer Tools

By:

Maklabu GmbH

Rating:

3.60

(76)

Version:

1.6 Last updated: 2023-11-16

Version code:

861526121

Creation date:

2013-03-12

Compatible devices:

Size:

8.75MB

URLs:

Website ,Privacy policy

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-06-30

Compare stats and ranking:

Ranking

# 184,093 ▼ 10

Other rankings

#98 in email extractor keyword 34 ▼ 30

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.

Developed by:

Maklabu GmbH

Apple Apps Store

https://apps.apple.com/us/app/winmaildat-opener/id596413390

Website:

http://www.maklabu.com/iphone/winmaildatopener.html#marketing

User Reviews

User reviews indicate Winmaildat Opener generally fulfills its core promise by extracting and displaying winmail.dat attachments on iOS, supporting common formats (PDF, DOCX, XLSX, images) with a simple interface. It is praised as free or low-cost and helpful for accessing mobile-friendly attachments. However, many report stability issues (crashes when saving), troubles after iOS updates, the inability to delete files, and limited or slow developer support, with some annoyance from ads.

Pros

Opens winmail.dat and lists/opens attachments across formats (PDF, DOCX, XLSX, images).
Simple and easy-to-use interface; does what it promises.
Free or low-cost with ads; option to remove ads for a small fee.
Helpful for reading attachments that can't be accessed on mobile before this app.
Works across various emails, letting you view content without using a computer.

Cons

Crashes, especially when saving/exporting photos.
Unreliable after iOS updates; may fail to open or prompt to download.
No option to delete/remove files inside the app.
Attachments can be grouped or numbered, making it hard to locate specific files.
Support is slow or unresponsive; some users complain about ads and lack of assistance.

Recent reviews

Does not work!

by 60*****, 2023-07-25

I have had this problem of not being able to open winmail.dat files for some time now on my iPhone 6. This program works great. Now I can see what I have been missing. Thank you.