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If you have any question about how to open winmail.dat and what the file is, we can assume that you have received this file as an attachment in an e-mail, and standard tools of your email service or operating system can not read the contents.
In this manual, details about what winmail.dat than to open it and how to extract its contents, and also why some of the recipients get emails with attachments in this format. Cm. also:.
What is a winmail.dat
Winmail.dat attachments e-mail contains information for the format of emails in Microsoft Outlook Rich Text Format that can be sent using Microsoft programs, Outlook or Outlook Express via Microsoft Exchange. This attachment file is also referred to as TNEF (Transport Neutral Encapsulation Format).
When a user sends email in RTF format from Outlook (usually older versions) and includes the design (colors, fonts, etc.), images and other elements (in particular, card contacts to vcf and calendar events icl), the recipient whose mail client does not recognize Outlook Rich Text Format a message arrives in plain text and all other content (formatting, images) is contained in attachment file winmail.dat which you can open without Outlook or Outlook Express.
View the contents of winmail.dat online
The easiest way to open winmail.dat is to use online services for this, without installing any software on the computer. The only situation when, probably, it is not necessary to use this option — if a letter can contain important and sensitive data.
The Internet manages to find about a dozen sites with file viewer winmail.dat that in my test completely successfully opened test files can allocate, the use of which is as follows (save the file attachment to your computer or mobile device, it’s safe):
In my example, the file winmail.dat was three files — file .htm bookmark file .contains the rtf message format and image file.
The author recommends to read:
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Free software to open winmail.dat
Computer programs and mobile apps to open winmail.dat, probably even more than online services.
Next, list those that you can pay attention and who, as far as I can tell completely safe (but still check them on VirusTotal) and perform their functions.
If the proposed programme is not enough, just look at the queries similar to the Viewer the TNEF, Winmail.dat Reader and like (only if we are talking about programs for your PC or laptop, don’t forget to check downloaded programs for viruses).
That’s all, hope you managed to extract everything you need from the ill-fated file.