Navigate to the search bar at the top of the screen and type.Download the email attachment to your local drive.It only takes a few seconds and is pretty straightforward: The online tool will show you what the file contains and allow you to convert and download the data. You can access it with any browser and use it to open the DAT email attachment. is an online service created as a response to the Outlook configuration problems. You won’t be able to open the whole email without using a third-party website. If you receive an Outlook message but don’t have it installed on your PC, you’ll get a winmail.dat file attached instead. This is especially the case with Microsoft Outlook. How to Open Winmail.dat FilesĮmail servers sometimes translate emails into the DAT format automatically. There are many alternative solutions you can download to your PC for free or even use online.Īll of these present a solid alternative to Notepad ++ when it comes to handling DAT files. Of course, you’re not limited to using a pre-installed program. You’ll have to use a different program each time.įor text-based DAT files, Windows 10 has a built-in text editor – the Notepad ++. Since it’s hard to know whether a DAT file includes images, videos, text, or software configuration files, there’s no one way to open them. The data is then used as a blueprint for various system tasks. They’re mostly hidden away in data directories, but sometimes you can get one as an email attachment.Įach kind of DAT file is created and handled by different software. More often than not, they’re bundled with DLL and other config files. Generic data files with the DAT extension are meant to store important information related to the program that created them. In this article, we’ll go over some of the more common tools you can use to open and convert differently.DAT files. One way to do it is by using a code-reading program which sounds complicated at first, but is pretty straightforward. That can be tricky since there’s nothing about the file that discloses its format right off the bat. First, you have to determine whether it’s video or text-based to figure out how to open a DAT file.

Winmail reader free windows 10