DAT file extension mystery

Discussion in 'Computer Support' started by Hockey Buff, Oct 31, 2004.

  1. Hockey Buff

    Hockey Buff Guest

    I received an email attachment having the DAT extension
    that seems unrecognizable. Web resources list 3 likely

    Exchange Server Error Message (WINMAIL.DAT) (Microsoft)
    MS Word for DOS
    Word Perfect Merge Data (Corel)

    I think I can safely eliminate the last two, having
    tried recent reversion of both Word and Word Perfect,
    leaving only the one -- whatever that refer to.

    My ISP in this case is Juno (v.5) and they will not
    respond to inquiries unless it is a paid subscription.

    Is anyone familiar with this issue?
    Hockey Buff, Oct 31, 2004
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  2. Hockey Buff

    Buffalo Guest

    DATs can be viruses.
    Scan it with several free online scanners before trying to open it again.
    "Online Antivirus scanners:
    http://www.ravantivirus.com/scan/ [See **]

    ** Caveat:

    There is a program on the following link that claims to :
    "Diablo Hack 206
    This is the best program for opening dat files, better than Doom Gaze."
    It may be able to do what you want.
    Buffalo, Oct 31, 2004
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  3. Hockey Buff

    why? Guest

    Yes, but I expect you want more than that?

    Used to get those at work a lot, 1/2 the company had an old email
    systems that didn't suffer from bad emails, the other 1/2 was on OL.

    From OL it always sent winmail.dat. The solution is to tell the sender
    to change thier settings, be polite and identify any attachments.

    Generally, it's a formatted version of the message.

    See www.google.com as usual,
    Web Results 1 - 10 of about 47,000 English pages for
    (0.66 seconds)

    Also search for Microsoft TNEF.

    Not only is there a lot of info there is a easy to find decoder utility
    for winmail.dat.

    why?, Oct 31, 2004
  4. Take a look at http://www.ust.hk/itsc/email/tips/tnef/
    and do as suggested. Before you try to open the attachment, don't forget to
    feed your virus scanner (after a fresh update) with that file, and also the
    extracted files.
    One of the many Outbug2000 annoyances ...
    Walter Mautner, Oct 31, 2004
  5. Hockey Buff

    Dan Glybitz Guest

    I have known of images sent with .dat extensions. Try renaming it with .jpg
    extension and viewing it.

    Dan Glybitz, Nov 2, 2004
  6. Hockey Buff


    Aug 17, 2012
    Likes Received:
    I will give you only one solution to download the Fileviewpro software for all files, I have already used it.
    file extension tif
    johnwalter, Aug 17, 2012
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