File Extension/DAT
alphabetical list of extensions

File extension .DAT

File description

The DAT extension is basically a generic file format. It comprises of data that may be referenced or opened by using a specific application program. However, some of the DAT format files can be directly opened, most consist of application data that has been referenced by the application when it is running. Thus, most of the DAT extensions are not meant to be opened by the user manually.

Though DAT happens to be a generic file format, it may be utilized by multiple applications. This may make it difficult to figure out as what application should be used to open the DAT file. But, if the DAT file is saved in a text format, the contents of the file can be easily viewed by opening it with a text editor.

Description of the problem
If you have on your computer a .DAT file that you cannot open, you are in exactly the same situation as thousands of other people who have similar problems with this or any other unknown file.

There may be several reasons why you cannot open the file with .DAT extension. Directly on this website you can find a solution of the most common problem with the .DAT file – that you do not have on your computer the appropriate program to open the file.
Solution
From the list below, select the appropriate program, install it and double click on the icon of a file that did not want to open - the problem with the .DAT file extension should be solved. However, if this does not happen, go back to the website to learn about other possible causes of the error, which have been described at the bottom of the website.
Category
Data Files
Developer
N/A
Popularity
StarStarStarStarStar
File name: Data File
Programs that will open this file:
Windows
Windows
602PC Suite 602PC Suite
Allegro Allegro
AOL Instant Messenger (AIM) AOL Instant Messenger (AIM)
AVG Antivirus AVG Antivirus
BitDefender BitDefender
BrainVoyager QX BrainVoyager QX
CA Anti-Spyware CA Anti-Spyware
Clarion Clarion
Corel WordPerfect Corel WordPerfect
Corel WordPerfect Office Corel WordPerfect Office
Daqarta Daqarta
FileAlyzer FileAlyzer
Firefox Firefox
Inno Setup Inno Setup
KaZaa KaZaa
LabVIEW LabVIEW
LogiKal LogiKal
MapInfo MapInfo
Microsoft Exchange Server Microsoft Exchange Server
Microsoft Windows Microsoft Windows
Microsoft Word Microsoft Word
Mini-Flash Programming Software Mini-Flash Programming Software
Miranda IM Miranda IM
My Personal Programmer My Personal Programmer
Nero Multimedia Suite Nero Multimedia Suite
Norton SystemWorks Norton SystemWorks
Ontrack EasyRecovery Ontrack EasyRecovery
Palm Desktop Palm Desktop
Peachtext Peachtext
Pegasus Mail Pegasus Mail
PSpice PSpice
Safari for Microsoft Windows Safari for Microsoft Windows
SeeYou SeeYou
Skype Skype
SmartWare SmartWare
UFOCaptureV2 UFOCaptureV2
Winmail Opener Winmail Opener
XnView XnView
Yahoo! Instant Messenger Yahoo! Instant Messenger
ZEMAX ZEMAX
Mac OS
Mac OS
iPhoto iPhoto
Original program Original program
Text editor Text editor
Linux
Linux
DataFlex DataFlex
GLPK GLPK
RADIANCE RADIANCE
Android
Android
Opera Mobile Opera Mobile
Category
Misc Files
Developer
Microsoft
Popularity
StarStarStarStar
File name: Exchange E-mail Attachment
Programs that will open this file:
Windows
Windows
Biblet WMDecode Biblet WMDecode
Message Viewer Lite Message Viewer Lite
Outlook Outlook
Windows Mail Windows Mail
WinMail Decoder Pro WinMail Decoder Pro
Winmail.dat Reader Winmail.dat Reader
Mac OS
Mac OS
Klammer Klammer
iOS
iOS
Klammer Klammer
Category
Video Files
Developer
N/A
Popularity
StarStarStarStar
File name: VCD Video File
Programs that will open this file:
Windows
Windows
GOM Player GOM Player
MPlayer MPlayer
Nero Nero
PowerDirector PowerDirector
PowerProducer PowerProducer
River Past Video Cleaner River Past Video Cleaner
VCDGear VCDGear
VLC media player VLC media player
Mac OS
Mac OS
Elmedia Player Elmedia Player
MPlayer MPlayer
VCDGear VCDGear
VLC media player VLC media player
Linux
Linux
MPlayer MPlayer
VCDGear VCDGear
VLC media player VLC media player
Category
Game Files
Developer
Mojang Specifications
Popularity
StarStarStar
File name: Minecraft Data File
Programs that will open this file:
Windows
Windows
INVedit INVedit
MCPlayerEdit MCPlayerEdit
Minecraft Minecraft
Minecraft server Minecraft server
NBTExplorer NBTExplorer
Mac OS
Mac OS
MCPlayerEdit MCPlayerEdit
Minecraft Minecraft
Minecraft server Minecraft server
NBTExplorer NBTExplorer
Linux
Linux
MCPlayerEdit MCPlayerEdit
Minecraft Minecraft
Minecraft server Minecraft server
NBTExplorer NBTExplorer
Category
Game Files
Developer
Electronic Arts
Popularity
StarStarStar
File name: SimCity 4 Game Data File
Programs that will open this file:
Windows
Windows
Building Architect Tool Building Architect Tool
DatGen DatGen
SimCity 4 Deluxe Edition SimCity 4 Deluxe Edition
Mac OS
Mac OS
SimCity 4 Deluxe Edition SimCity 4 Deluxe Edition
Category
System Files
Developer
Microsoft
Popularity
StarStarStar
File name: Windows Registry Hive File
Programs that will open this file:
Windows
Windows
Microsoft Windows Microsoft Windows
Category
Misc Files
Developer
Jordan Russel
Popularity
StarStarStar
File name: Inno Setup Uninstaller Data File
Programs that will open this file:
Windows
Windows
Inno Setup uninstaller Inno Setup uninstaller
Category
Data Files
Developer
U.S. Department of State
Popularity
StarStar
File name: Nonimmigrant Visa Application Data File
Programs that will open this file:
Remember!
The .DAT file extension can correspond to several not related file formats. If there is more than one file format with the .DAT extension, you will probably find most of them at this website. Remember that you need to download a program to support a particular file type. So first look through the entire contents of the website to select a program to support just the file you have.

Other possible reasons why your .DAT file does not want to open

In addition to the problem described above, i.e. the lack of the appropriate application to support the .DAT file, there may be several reasons that cause problems with opening and operation of the data format:

1. Incorrect version of the installed application

A quite common problem is the lack of application in the appropriate version. Even if you have an application, with the help of which you should open the .DAT file, you may have a problem with it because of its version. Perhaps in previous versions the application has not yet supported the .DAT file, so download the update and check again.

2. Incorrect .DAT file association with the program

If you have already installed the appropriate application, and it is the correct version, the file may not open correctly, because the operating system does not have information that this program supports the file. So you need to "show" which program the computer should use. To do this:

  • Right-click the .DAT file
  • Go to the "Open with" - then "Choose default program ..."
  • Locate the appropriate application
  • Click "OK"

3. The file is corrupt

It also happens that the file you want to open is corrupt and therefore there is no such possibility. In this situation, you should find its different version, or ask a person from whom you got, to send it again.