• May 30, 2021 •

How to Open winmail.dat files on Mac OS

Have you ever received the Winmail.dat file on your Mac OS while checking emails?

It happens that your boss has sent you an email attachment but it appears to be a Winmail.dat file. When you attempt to open the Winmail.dat file, it will show nothing or the attachment file is empty.

There are Mac users who are unable to open winmail.dat on their PC but don’t worry because we got you all covered up.

In this article, we will show you how you can open Winmail.dat on Mac OS. Read the complete article that we have managed to provide you. Without further ado, let’s get started.

Also read: 6 Ways to Use Gmail on Mac Efficiently

What is Winmail.dat File?

Winmail.dat files consist of data or information that is not meant to read by other users excluding Microsoft Outlook users. Winmail.dat files are produced by Microsoft Outlook when its users try to send emails via Rich Text Format or using HTML.

As a result, people who are using email sources excluding Microsoft Outlook cannot see the winmail.dat attachment file in Rich Text Format or HTML format.

Mind you, Microsoft Outlook is the only platform that prefers to utilize data or information by winmail.dat file, so the chances of getting across with this file might be less.

How to Open winmail.dat files on Mac OS?

Following are three methods to open winmail.dat files:

Method 1: Forward winmail.dat email file attachment to Gmail

This is a simple method to open winmail.dat. Just send the winmail.dat email file to your own Gmail account. By doing this, you will be able to open and access the winmail.dat file.

How To Open Winmail.dat Files On Mac Os X

This is workaround should work as winmail.dat will be rendered into the formatted email by Microsoft Outlook. Or you can simply open winmail.dat on Google Docs.

Method 2: Extract winmail.dat file using TNEF’s Enough on Mac OS

For this method, you have to download TNEF’s Enough as it is free and safe to use.

Step 1: Download and install TNEF’s Enough on your Mac OS.

How To Open Winmail.dat Files On Mac Os X

Step 2: Here, you need to save the winmail.dat attachment. Go to mail and right-click (control+clicking) on winmail.dat file and choose Save Attachment… from the list and select a folder and click on Save.

How To Open Winmail.dat Files On Mac Os X

Step 3: Open TNEF’s Enough, click on the File menu, and select Open or press control+o.

How To Open Winmail.dat Files On Mac Os X

Step 4: Select the winmail.dat file that you have to save as shown in Step 2.

How To Open Winmail.dat Files On Mac Os X

Step 5: A window will show up that displays the correct file format name, just double click on the file and save it in the desired folder.

How To Open Winmail.dat Files On Mac Os X

Step 6: Go to the folder where you have saved the file as shown in Step 5.

How To Open Winmail.dat Files On Mac Os X

Now, you can open, view, or access the winmail.dat file on your Mac OS without any problem.

How To Open Winmail.dat Files On Mac Os X

Method 3: Save winmail.dat as Intended file type

You can open the winmail.dat file on your Mac without taking the help of other sources, but there’s a trick. You have to choose the correct intended file name to open the actual content present in the winmail.dat file.

Step 1: Open the winmail.dat email file attachment in mail for Mac.

Step 2: On the winmail.dat do right-click (or control+click) and choose to click on Save Attachment…

How To Open Winmail.dat Files On Mac Os X

Step 3: A small window will appear asking you where to save the file. Here, just replace .dat with .rtf, .docx, or .pdf by assuming the correct intended file type while renaming it and click on Save.

How To Open Winmail.dat Files On Mac Os X

Step 4: Now visit the file location where you have saved the intended file type.

How To Open Winmail.dat Files On Mac Os X

Now, you can open and view the file.

Here, the file will open in the correct format only if you have chosen the intended file type correctly.
For example, suppose the winmail.dat file is the actual pdf file so you shall rename the file as hexaware.pdf and not as hexaware.jpeg.
Because the winmail.dat is pdf file and not an image file.

Conclusion

Now you know how to open the winmail.dat file on your Mac, so there shall be no confusion opening or viewing the winmail.dat file on Mac in the future.

It is advised to visit and check the article again for the reference incase you don’t remember how to open winmail.dat file.

That’s it for now, hope this helps! If you have any queries, you can mention them in the comment section below. till then, stay tuned for more info.

Read next: How to Fix Cannot Send Mail, Does Not Allow Relaying Issue

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