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what program do you use to open a .dat file? I often get these as email attachments.?

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  • 2 decades ago
    Favorite Answer

    Most .dat files that we receive as email attachments are attachments from MS Outlook. It's actually a file format called TNEF (that no one apart from Microsoft seems to use).

    The actual file that the person meant to attach is wrapped up in the TNEF code (although sometimes outlook will attach the file with nothing but a vcard, or similarly basically blank file).

    There are a couple of free TNEF extractors that I can think of, but the best one I've found is called fentun. You can find it at http://www.fentun.com/ There is also a mac program called TNEF's Enough, but I don't have any experience using it, so I can't comment.

  • 8 years ago

    Since ".dat" is a common extension, it may be utilized by different programs. This can be a problem to open a DAT file. In any case, the most ideal approach to open a .DAT file is to utilize the program that made it. Nonetheless, if you're not certain, you can use Notepad to identify the program.

    You'll typically just see this file format when getting emails with attachments.

    For some reason, some email programs change the file extension on email attachments to .DAT by itself. So if somebody sent you a picture and now it’s a .DAT file, you initially need to save it to your computer and after that change the file extension to whatever you suppose it should be. Also, for Word document, change it to .DOC, etc.

    How to change the file

    Go to MY Computer, click on Tools and choose Folder Options.

    Next, click on the View tab and afterwards scroll down to the "Hide extensions for known file types" and Uncheck it. Now we will have the capacity to see the file extension and transform it to something else.

    Now you can change the file extension to the file extension you wanted by doing right click on the .DAT file.

    You can additionally attempt other programs like Windows Media Player since it will open it in the event that it happens to be a movie, Mp3, or comparable media format. So confidently you are presently able to open your secretive .Dat file utilizing one of the above specified routines! If not, If not, go to http://www.file-extensions.info/extension/511-dat page and see what to do.

  • nam
    Lv 4
    5 years ago

    What Is A Dat File

  • 2 decades ago

    The problem is that so many different programs use ".dat" that it really doesn't tell you anything about the file, what it contains, or what program it belongs to. There is no standard format, there is no standard way to interpret the contents. ".dat" is only a name and nothing more.

    So I'll be clear: there is no way to know how to open a .dat file unless you know what program created it. Period.

    Source(s): ASK-LEO.COM
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  • 2 decades ago

    Why should you want to open data files if you don't know which program created them? Your system is full of .dat files and are best left alone if you don't know what the effects of opening or changing them might be.

  • Anonymous
    2 decades ago

    There are a lot of .dat files on a computer but shouldn't be sent as email attachments, why would you get that?

  • 2 decades ago

    Be care full there are file ABC.DAT.exe on net.

    Else Dat files are Data files and the extension is used by numerous programs. Including Metlab, VCD etc.

    If they are coming from known source ask him, Else delete them.

  • Rafi
    Lv 4
    2 decades ago

    It depends. sometimes it is a video file which can be opened with any media player program. Sometimes its a data file. In unix u get a .dat file which can be opened with a note pad.

  • Anonymous
    7 years ago

    First I try to indentify the type of the file and then change the extension of the file accordingly. Like if its an image I change it to .jpg or if it is a MS word file then I make the extension .doc. and then it can be opened easily.

  • 2 decades ago

    yeah .dat files can vary. a lot of them are text based and can be opened with notepad

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