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How do i open this attachment

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i got an attachment today ( i know who its from ) and it ends in ".dat" .I cant get it to open . when i click on it it opens a site on windows xp with free trials to download, but i dont know what i need to download to open it.....HELP ! WHAT TYPE OF FILE IS THIS ?
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Comments

  • crampo_2
    crampo_2 Posts: 428 Forumite
    Try Opening it in Microsoft Notepad or Microsoft Wordpad.
    Peter: Hey Lois... what's this word? Lois: Evil. Peter: And this one? Lois: Knievel. Peter: And this one? Lois: Was. Peter: And this one? Lois: Born. Peter: And this one? Lois: In.
    Peter: And this one? Lois: Montana. Peter: Ah... oh, hey Lois did you know Evil Knievel was born in Montana? Family Guy - I Take Thee, Quagmire 04x21
  • eyeinthesky
    eyeinthesky Posts: 381 Forumite
    Part of the Furniture 100 Posts
    edited 28 May 2009 at 11:02PM
    I remember seeing this type of file in a VCD, but I think it is used for other stuff as well. You could try opening it with notepad, might give you a clue as to content. This file could be text, images or something else. Best way to deal with it is ask the sender which program created it.
  • Donnie
    Donnie Posts: 9,862 Forumite
    If you know who sent it, why don't you ask them?
  • Paradigm
    Paradigm Posts: 3,656 Forumite
    Part of the Furniture 1,000 Posts Name Dropper Combo Breaker
    edited 28 May 2009 at 11:30PM
    I wouldn't open it until I'd contacted the sender & checked it's a valid mail from them. It could be perfectly innocent but......
    Always try to be at least half the person your dog thinks you are!
  • -TangleFoot-
    -TangleFoot- Posts: 4,673 Forumite
    Part of the Furniture Combo Breaker
    niceday999 wrote: »
    i got an attachment today ... and it ends in ".dat"
    Is it called winmail.dat by any chance?
  • andy2004
    andy2004 Posts: 1,309 Forumite
    Personally I wouldn't open any attachment before scanning it, and then i would only open in a hex viewer, to see if the data was what i thought it would be.
    usually .dat files are video files and can be opened in mediaplayer classic. However they could also be viruses / trojans.

    Your saying you know who sent it, but i have received emails from myself well the FROM was my email address, but it was same email address they are being received on sent by other people. so just because you think its from a friend, it could be from someone else. Just cause the FROM line says your friends name dont mean to say it was them.
  • crampo_2
    crampo_2 Posts: 428 Forumite
    Any File could be a .dat file. Probably going a bit to far into this, but you could take any type of file and change the extentsion. e.g a file could . Expenses.xls could be changed to Expenses.dat or to Expenses.doc . although the file wont work in the program the extentsion is set for.
    Peter: Hey Lois... what's this word? Lois: Evil. Peter: And this one? Lois: Knievel. Peter: And this one? Lois: Was. Peter: And this one? Lois: Born. Peter: And this one? Lois: In.
    Peter: And this one? Lois: Montana. Peter: Ah... oh, hey Lois did you know Evil Knievel was born in Montana? Family Guy - I Take Thee, Quagmire 04x21
  • omen666
    omen666 Posts: 2,206 Forumite
    1,000 Posts Combo Breaker
    use filext.com going foward but probably s a winmail.dat as mentioned above
  • chunter
    chunter Posts: 2,015 Forumite
    Part of the Furniture 1,000 Posts Combo Breaker
    Scan it before you do anything with it. There's a fairly good possibility it's a virus.
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