Opening a DAT File

The DAT file type is primarily associated with Exchange Server.

DAT	File extension: DAT
	File type:	rich text email attachment

What is a DAT file

DAT files mostly belong to Exchange Server by Microsoft. DAT file extension is mainly used to save Rich Text RTF information for emails sent from Exchange Server, an email server developed by Microsoft. Such DAT files are stored in Transport Neutral Encapsulation Format (TNEF) which is also compatible with Outlook. The file is typically named WINMAIL.DAT or WIN.DAT. DAT filename extension is also associated with the MPEG format for storing videos on VCD dics. The Registry on Windows operating system stores user settings, file associations, passwords etc. in a Hive file with DAT extension. This file is named NTUSER.DAT. Inno Setup, a software for creating Windows installers saves program uninstall logs in in a DAT file often named UNIS000.DAT. The data in this file is used when uninstalling a program. Internet Explorer, a browser bundled with Windows operating system saves its cache in a DAT file. Many other programs use DAT files to store various types of data.

How to open a DAT file

You need a suitable software like Exchange Server to open a DAT file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your DAT file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a DAT file directly in the browser:. Just drag the file onto this browser window and drop it.

Online DAT File Viewer

Choose your .dat file to view this image

or drag and drop it here

Online File Viewer

✈

Read our privacy guarantee in Filext’s terms and privacy policy

Please allow ads on our site

This helps us keep our servers running. Then re-upload your file to view it.

Click here to see how to disable the ad blocker for filext.com

How to convert a DAT file to JPG, PDF, HTML, DOC, ...

If you want to convert or edit a DAT file, you can use our free Online DAT File Converter (powered by Convert.Guru):

To do so, click the "Choose your .dat file to view this image" button above.
After your file is opened in browser,
click "Save as..." in the menu.
Then click the file format (e.g. PDF, JPG, DOCX, TXT, ...) you want.
Your file will be converted and downloaded.

Programs that open and convert DAT files:

Exchange Server by Microsoft
See the previous paragraphs to learn more about the main application. DAT files are often referred to as Exchange Server data files because this type of file is primarily created or used by this software.
Allegro (generic Packfile data) by Allegro
Allegro is a freely distributed game programming library used by C and C++ developers. It provides low level routines used for operations such as timing, user input, and graphics manipulation. Allegro supports multiple platforms and stores packfiles using DAT filename extension. This file format is classified as Data. Related links: PACKFILE
AVG (integrity database) by AVG
AVG is a cross-platform anti-virus and computer security software with a range of tools for protecting digital devices against malware, spyware, and ransomware. The integrity database in AVG version 6 is stored as a DAT file. This file format is classified as Database.
BLUEWAVE (rich text email attachment) by BLUEWAVE
BLUEWAVE is an obsolete email reader that allowed users to download and read emails offline. Rich Text data in the downloaded emails were stored as DAT files. This file format is classified as Data.
Chuzzle (saved game) by PopCap
Chuzzles is a board video game where the player is tasked with matching colored tiles on a 6x6 grid. The Chuzzles are googly-eyed little balls of fur that giggle and squeak as you poke and push them across the board. Saved games that can be resumed are stored as DAT files. This file format is classified as Game.
Clarion (database) by SoftVelocity
Clarion is an integrated development environment consisting of a multi-paradigm programming language and other tools for creating database-driven applications. DOS versions of Clarion save databases as DAT files. The DAT file is usually associated with K## (##=numbers) key files that are indexes into the data. This file format is classified as Database. Related links: Clarion Magazine, Clarion (programming language)
Commodore 64 (music) by CBM
Commodore 64 is a series of 8-bit computers discontinued in the early 90s. Commodore 64 supported the playback of audio files stored in DAT format. The files were parsed using audio/psid, audio/x-psid, audio/sidtune, audio/x-sidtune MIME types when imported into SIDPLAY on Commodore 64. This file format is classified as Audio.
Creatio (dataset definitions) by Creatio
Creatio (formerly bpm'online) is a low code process management and customer relationship management software suite. Datasets created with Creatio programs are stored in DAT files. This file format is classified as Data.
Daqarta (extended audio data) by Interstellar Research
Daqarta is a data acquisition and real-time analysis software that essentially turns a Windows machine into an oscilloscope. It uses sound cards to provide high performance waveform and FFT spectrum analysis, color spectrograms, signal averaging, signal generation etc. The extended audio data used by Daqarta is stored in DAT files. This file format is classified as Audio.
DBISAM (database table) by Elevate
DBISAM is an embedded database engine that can be integrated into various applications. It is compatible with any development environment that uses ODBC (e.g. PHP and Java) for data access. DBISAM stores database tables in DAT files. This file format is classified as Database.
Disk Doctor (undo data) by Broadcom
Disk Doctor is a computer hard disk management utility for recovering lost or inaccessible files and isolating/repairing bad disk sectors. Before it was discontinued, Disk Doctor was distributed as part of Norton security suite. The file used to store "undo" data in Disk Doctor had DAT extension. This file format is classified as Data. Related links: PERSONAL COMPUTERS; A Remarkable Disk Doctor
DJ-1000 (photograph) by Mitsubishi
DJ-1000 is an older digital camera first released in the late 90s. Photographs captured with DJ-1000 were saved on the device's external compact flash memory as DAT images. This file format is classified as Raster Image.
EasyRecovery (saved recovery state) by Ontrack
EasyRecovery is a simple and lightweight data recovery solution for Windows, Mac, and smartphones. It allows users recover lost or inaccessible data from crashed hard drives, corrupted storage, or infected files. The saved state of a recovery process initiated by EasyRecovery is saved as a DAT file. This file format is classified as Data.
GetDataBack (disk image) by Runtime
GetDataBack is a data recovery utility for Windows desktop and server platforms. It offers a range of tools for recovering lost or inaccessible files from NTFS, FAT, HFS+, and exFAT partitions. Disk images recovered by GetDataBack are stored as DAT files. This file format is classified as Disk Image.
Guild Wars (game data) by ArenaNet
Guild Wars is a series of multiplayer online role-playing video games for Windows and Mac operating systems. The latest version of the game is Guild Wars 2: Path of Fire. Each version stores some game data in DAT files. This file format is classified as Game. Related links: Guild Wars Data File Format, Wikipedia Guild Wars Page
Gunlok (game archive) by Rebellion
Gunlok is a post-apocalyptic, real-time strategy video game. Players assume the role of a warrior named Gunlok (the game's main character) who leads a campaign against enemy robots. The game archive file in a Gunlok distribution had DAT file extension. This game has been discontinued. This file format is classified as Game. Related links: Dragon UnPACKer, Gunlok Demo
Inno Setup (uninstall log) by Jordan Russell
Inno Setup is a free installer for Windows programs. It stores data required for uninstalling a program in a DAT saved file alongside the EXE executable with the same base filename as the DAT file. Both files are stored in the installation directories of individual programs. This file format is classified as Data. Related links: Wikipedia Inno Setup Page
Internet Explorer (browser cache) by Microsoft
Internet Explorer is a web browser distributed as part of most Windows operating systems. The browser cache is stored in a DAT file. This file format is classified as Data. Related links: FILExt INDEX.DAT FAQ, Microsoft Edge
Kazaa (unfinished download) by Sharman
Kazaa was a media sharing application for desktop devices. The program and other file sharing software used the FastTrack peer-to-peer (P2P) protocol to transfer data over the Internet. Unfinished downloads in a FastTrack client such as Kazaa were stored as DAT files. This file format is classified as Data. Related links: FastTrack, iMesh
LabVIEW (binary datalog) by National Instruments
LabVIEW is a software tool for designing test, measurement, and control systems. It offers a range of tools that allow rapid access to hardware and data insights, debugging, configuration and visualization. The binary datalog generated by LabVIEW is stored in a DAT file. This file format is classified as Data. Related links: Wikipedia LabVIEW Page
LithTech (compiled game level) by Monolith
LithTech is a video game engine with development tools and runtime environments for playing video games on various platforms. Users may compile game level resources with Lith Tools' DEdit utility to output a binary DAT (game level file) which the game uses. This file format is classified as Game. Related links: Lith Tools
Morpheus (adware) by Morpheus
Morpheus is a discontinued online sharing and peer-to-peer search platform for Windows computers. While active, Morpheus used an adware named RDXR020305.DAT (or similar) to display advertisements on the program's user interface. This file format is classified as Data. Related links: Ad-aware, Morpheus (software)
MPEG Streamclip (audio recording) by SQUARED 5
MPEG Streamclip is a cross-platform video converter with support for legacy and current video formats. The program supports input formats such as DAT (Digital Audio Tape), VOB, REC, VID, AC3, and many others. DAT digital audio tape files may be edited and exported in MPEG format with MPEG Streamclip. This file format is classified as Audio. Related links: Digital Audio Tape, How Digital Sound Works
My Personal Programmer (distributed project) by M:Pact
My Personal Programmer is a GUI-based software development tool that allows users to create Windows-compatible programs without learning a programming language. The DAT file generated by My Personal Programmer contains a distributed project. This file is read by the produced.EXE executable in order to run the written program. This file format is classified as Data.
MZ-700 (RAM disk) by Sharp MZ
MZ-700 is an emulator with graphic plotting, RAM disk, and data recording support. RAM disk files created with MZ-700 have DAT file extension. This file format is classified as Data.
Nascar Racing (game archive) by Sierra
Nascar Racing was a cross-platform racing video game featuring multiple race tracks and up to 38 cars the player could choose from. The game archive was stored in a DAT file. This file format is classified as Game. Related links: Dragon UnPACKer
Nero (CD speed results) by Nero AG
Nero is a suite of multimedia tools for VCD/DVD/CD burning, editing and authoring. The program features an array of videos, audio, photo, networking and back-up applications. Disc write/playback speed results created with the CD-DVD Speed utility in Nero are saved in DAT files. This file format is classified as Data.
Novell Messenger (Message Attachment) by Microfocus
Novell Messenger is a cross-platform enterprise instant messaging software suite. The DAT file created by Novell Messenger contains a message attachment. Users may start conversations, block other users, and manage corporate conversations from Novell Messenger. This file format is classified as Data.
Oric Atmos (snapshot) by Tangerine
Oric Atmos is an 8-bit computer from the eighties. Originally there was the black and grey Oric-1. This was upgraded to become the Oric Atmos. Snapshots taken in Oric Atmos were stored as DAT files. This file format is classified as Raster Image.
Peachtext (list manager) by Sage
Peachtext is an obsolete software used for word processing, basic database management, and financial modelling. It featured full screen text editing along with user-defined variables and a number of other advanced features for the period. Peachtext's List Manager files had DAT file extension. This file format is classified as Data. Related links: A Brief History of Word Processing (to 1986)
PHASES (free form input data) by W. Furey et. al.
PHASES is a software package for computing phase angles for diffraction data from macromolecular crystals. The programs are written in FORTRAN 77 with the exception of a single C interface subroutine (facilitating the use of X-Window graphics in some programs). PHASES stores free form input data in DAT files. This file format is classified as Data.
PowerDVD (movie) by CyberLink
PowerDVD is a cross-platform video player with support for DVD, CD, VCD, and Blu-ray formats. The video streams of video compact discs (VCDs) are stored in MPEG (based on the RIFF) container format as DAT files. Users may play DAT video files and other formats in PowerDVD. This file format is classified as Video. Related links: Video Help Site, Resource Interchange File Format, Video CD
Precisely (data) by Pitney Bowes
Precisely (formerly MapInfo) is a geographic data acquisition, analysis, and spatial maps creation software. The native data format used by MapInfo stores data in DAT files. Precisely is widely used in marketing, insurance, crime analysis, telecoms, and other sectors. This file format is classified as Data. Related links: MapInfo Professional
Propilkki (game data) by Procyon
Propilkki is a virtual ice-fishing video game for Windows operating system. Propilkki 2 is also available for Android devices. Some game data required for the installation and gameplay of Propilkki are saved in a DAT file. This file format is classified as Game.
PSpice (numerical data) by Cadence
PSpice is a SPICE analog circuit and digital logic simulation, and analog mixed signal simulator software for PCs. The program was used in electronic design automation. Numerical data used by PSpice were stored in DAT files. This file format is classified as Data.
SeeYou (waypoint) by Naviter
SeeYou is a planning and analysis program for glider pilots. The program is designed for desktop and notebooks, and some of its features include pre-flight planning, in-flight navigation aids, and post-flight analysis. Waypoint (GIS) data imported into SeeYou are saved as DAT files. This file format is classified as GIS.
Shareaza (thumbnail) by Shareaza
Shareaza is a peer-to-peer client used to download files from popular P2P networks. The program allows users to connect to 4 networks simultaneously and it's only available for Windows operating system. Thumbnails downloaded by Shareaza have DAT filename extension. This file format is classified as Raster Image.
SPOT (image) by Spot Image
SPOT is a high-resolution optical imaging Earth observation satellite system. The name SPOT is an acronym for the French phrase Satellite Pour l'Observation de la Terre (Satellite for the observation of Earth). Aerial images of Earth taken with SPOT systems are stored in DAT format. This file format is classified as Raster Image. Related links: XnView, SPOT IMAGE
Sublime Text (generic data) by Sublime
Sublime Text is a cross-platform text editor mainly used to write and edit source code. It supports various file formats including DAT files which can be just about anything. A DAT file can be text, graphics, general binary data, settings, videos etc. This file format is classified as Data. Related links: FILExt INDEX.DAT and Open DAT FAQ
TomTom (traffic data) by TomTom
TomTom is a portable GPS navigation system for cars. It is distributed as a program for standalone GPS devices, mobile phones, and automated driving systems. Traffic data accessed by TomTom are stored in DAT files. This file format is classified as GIS.
Total Defense (data/scan strings) by Total Defense
Total Defense (formerly (PestPatrol and Anti-Spyware afterwards) is a suite of anti-virus and anti-spyware digital products for Internet and local system protection. The data and scan strings created by Total Defense, the successor of (PestPatrol) were stored in DAT files. This file format is classified as Data.
UFOCaptureHD2 (map) by SonotaCo
UFOCaptureV2 is a time shift motion capture software for observing and capturing images of the night sky. It provides 3-dimensional triggering thresholds, masking (elimination of unwanted triggers), and fixed star position detection among others. The DAT files used by UFOCaptureV2 contain maps. This file format is classified as GIS.
VLC (video) by VideoLAN
VLC is a cross-platform media player with native support for various media file formats. The video stream of Video CD (VCD) discs stored as DAT files can be played with VLC. This file format is classified as Video. Related links: Help Site, Resource Interchange File Format, Video CD
Walkman (digital audio tape) by Sony
Walkman is a family of portable music players manufactured by Sony. The DAT file type used by Walkman is basically an obfuscated MP3 file in a custom container (typically called a digital audio tape). The files are created by the MP3FileManager application. This file format is classified as Audio. Related links: NW-S23 MP3 File Storage Container Format
Windows (Registry Hive) by Microsoft
Windows is a popular operating system widely used on Desktop devices. Server and mobile versions of Windows are also available. The Registry utility on Windows uses DAT file extension to store Hive files containing user account settings such as passwords, logs, and file associations. This file format is classified as Settings.
Word (document) by Microsoft
Word is a cross-platform rich text word processor first released as an MS DOS program. Documents created with Word for DOS were saved as DAT files. These versions of Word are not supported on modern computers. This file format is classified as Data. Related links: History of Microsoft Word
WordPerfect (merged data) by Corel
WordPerfect is a suite of productivity applications featuring a word processor, PDF reader, email client, spreadsheet program and more. Mail Merge, a Word Perfect tool for creating personalized letters, labels, timesheets etc. stores merged data obtained from two or more sources in a DAT file. This file format is classified as Data.
Z80 (snap data) by Marat Fayzullin
Z80 is a portable emulator for 8-bit Z80 microprocessors manufactured by Zilog. The snap data in Z80 is stored in a DAT file. This file format is classified as Data. Related links: Zilog Z80

DAT file format details:

Each file has a definite file format, that is, how the stored data is arranged in the file. Often, the file format can be deduced from the file extension or the initial bytes (called the signature). Nonetheless, different programs can utilize the same file extension to represent distinct file formats. Double-clicking on the file often results in an error when opening. If there are problems opening a file, you must first determine the file format used. Our examination of the DAT files comes to the following conclusion:

DAT is a very commonly used file extension and is used by many programs, each with its own file format. However, the following two file formats are common:

5% of all DAT files belong to Transport Neutral Encapsulation Format. The files are using the common file format TNEF. TNEF is short for Transport Neutral Encapsulation Format. It is a proprietary email attachment format used by Microsoft Outlook and Microsoft Exchange Server. An attached file with TNEF encoding is most often named winmail.dat. The contents of these files cannot be read by a human; only a computer program can interpret the data. DAT files can be up to 31 MB in size, but are often around 5 KB - 1 MB. The file type is relatively new. The following keywords are characteristic: IPM.Microsoft Mail.Note. A usual file name is winmail.dat. Files like these are about noname, arzn, original and sibnm.
2% of all DAT files are associated with Windows NT Registry Hive. They consist of unreadable binary data. The file size is in the range of 8 KB to 1 MB. The keywords regf, ntuser, OfRg, Users and rmtm are typical for these files. An example of a file name is NTUser.dat or settings.dat. These files are attributed to class, user, classes, edge, provisioning, activation, microsoft, desktop and store.

All other DAT files (93%) have no uniform format, such as VideoCD MPEG, Skype chatsynch, Logiqx XML Format, Microsoft Internet Explorer cache, Inno Setup Uninstall Log, Knowledge Dynamics Installer project, GameMaker Studio game data archive, PDF, GZIP, ZIP, UTF-8, JSON, JPG, DOC, SQL, EXE, PNG, zlib, RAR, collation, CmnD and CroFile. These files are often connected to metadata, global, resources, sysid, text or wpsettings. Just click the "Choose your .dat file to view this image" button on this page to find out what your DAT file is.

Technical Data for DAT File Extension

File classification:

Data

Related files:

date, check, data, tnef, hea, tad, txt, dat_old, vcd, idx, bin, um, dll, exe, cid, sdoc, log, zip, atr, drt, edb, stm, jrs

Mime type:

application/dbase, application/dbf, application/octet-stream

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: AshampooMediaPlayer.MediaFile, FileType: Ashampoo Media Player+ media file, AppName: Ashampoo Media Player+

ProgramID: CompVideo, FileType: COMPVIDEO

ProgramID: data-file, AppName: Notepad
EXEFile: notepad.exe

ProgramID: dbfile, FileType: Data Base File

ProgramID: GraphicsConverterPro.dat, FileType: SPOT, AppName: GraphicsConverter-reg
EXEFile: GraphicsConverter.exe

ProgramID: MediaSource.datFile, AppName: Creative MediaSource Player
EXEFile: CTCMS.exe

ProgramID: NeroMediaPlayer.File, FileType: NeroMediaPlayer media files

ProgramID: NeroMIX.File, FileType: NeroMIX media files, AppName: NeroMIX

ProgramID: NeroShowTime.Files, FileType: Nero ShowTime Files, AppName: Nero ShowTime
EXEFile: ShowTime.exe

ProgramID: NVDVD.PlayFile, AppName: NvDvd
EXEFile: NvDvd.exe

ProgramID: RadLight Media DAT, AppName: RadLight

ProgramID: UltraEdit.dat, AppName: UltraEdit-32 Professional Text/Hex Editor

ProgramID: Winamp3.File, FileType: Winamp media file, AppName: Winamp3
EXEFile: winamp3.exe

ProgramID: ALLPlayerFile
EXEFile: D:\aaa\MarBit\ALLPlayer\ALLPlayer.exe %1

ProgramID: Blaze Media Pro
EXEFile: %ProgramFiles%\Blaze Media Pro\BMP.exe %1

ProgramID: DAT_conch_file
EXEFile: %ProgramFiles%\MasterSoft\SuperDVD.exe %1

ProgramID: data-file
EXEFile: %SystemRoot%\notepad.exe %1

ProgramID: datfile
EXEFile: G:\C55\3rdParty\bin\cs.exe %1

ProgramID: DBISAMTable
EXEFile: C:\dbisam\addition\ver3\util\dbsys\dbsys.exe %1

ProgramID: DVD Architect 2.0
EXEFile: %ProgramFiles%\Sony\DVD Architect 2.0\dvdarch20.exe %1

ProgramID: Ivi.MediaFile
EXEFile: %ProgramFiles%\InterVideo\WinDVD4\WinDVD.exe %1

ProgramID: NeroMIX.File
EXEFile: %ProgramFiles%\Ahead\NeroMix\NeroMix.exe %1

ProgramID: NeroShowTime.Files
EXEFile: %ProgramFiles%\Ahead\Nero ShowTime\ShowTime.exe %1

ProgramID: NeroShowTime.Files
EXEFile: E:\Nero\Nero ShowTime\ShowTime.exe %1

ProgramID: Probe.Document
EXEFile: %ProgramFiles%\ORCAD_~1\PSpice\pspice.exe /dde

ProgramID: Probe.Document
EXEFile: C:\OrCAD\ORCAD_~1.0_D\tools\pspice\pspice.exe /dde

ProgramID: Text.File
EXEFile: %ProgramFiles%\HTML Help Workshop\hhw.exe %1

ProgramID: txtfile
EXEFile: %SystemRoot%\system32\NOTEPAD.EXE %1

ProgramID: UltraEdit.dat
EXEFile: %ProgramFiles%\UltraEdit\uedit32.exe %1

ProgramID: WPWin6.1File
EXEFile: c:\office\wpwin\WPWIN.EXE /ddeex

ProgramID: data-file
EXEFile: %SystemRoot%\SYSTEM32\NOTEPAD.EXE %1

ProgramID: ZPDATFile
EXEFile: C:\Documents and Settings\Kimbali Bays\Desktop\XP CD Creator update\microsoft\zoomplayer403std\zplayer.exe %L

ProgramID: Ivi.MediaFile
EXEFile: %ProgramFiles%\InterVideo\DVD6\WinDVD.exe %1

ProgramID: MediaSource.datFile
EXEFile: %ProgramFiles%\Creative\MediaSource\CTCMS.exe /PlayNow %1

ProgramID: GDiVXFile
EXEFile: %ProgramFiles%\GDivX Zenith Player\GDivX Player.exe %1

ProgramID: DATfile
EXEFile: %ProgramFiles%\DSPlayer\DSPlayer_v0.59.5_alpha.exe %1

ProgramID: cppfile
EXEFile: %ProgramFiles%\Microsoft Visual Studio .NET\Common7\IDE\devenv.exe /dde

ProgramID: datfile
EXEFile: %ProgramFiles%\Media Player Classic\mplayerc.exe %1

ProgramID: IndexDatSpy.Document
EXEFile: %ProgramFiles%\INDEXD~1\INDEXD~1.EXE /dde

ProgramID: ACEMegaCoDecSPack.MPEGVideoFileS
EXEFile: %ProgramFiles%\ACE Mega CoDecS Pack\Media Player Classic\mplayerc.exe %1 /open

ProgramID: XnView.Image
EXEFile: %ProgramFiles%\XnView\xnview.exe %1

ProgramID: mplayer-win32
EXEFile: %ProgramFiles%\MPlayer\mplayer.exe -idx %1

ProgramID: DDTrainer.DatFile
EXEFile: C:\Diablo\ddtrainer\DDtrainer.exe %1

ProgramID: UltraEdit.dat
EXEFile: %ProgramFiles%\IDM Computer Solutions\UltraEdit-32\uedit32.exe %1

ProgramID: datfile
EXEFile: D:\yedekler\admin\media player c2kxp6482\mplayerc.exe %1

ProgramID: Winamp.File
EXEFile: %ProgramFiles%\Winamp\Winamp.exe %1

ProgramID: adrenalin.dat
EXEFile: %ProgramFiles%\Digital Pulse Inc\adrenalin\play.exe /Open %1

ProgramID: File.CZip
EXEFile: %ProgramFiles%\ZipGenius 6\zipgenius.exe -open %1

ProgramID: Ivi.MediaFile
EXEFile: %ProgramFiles%\InterVideo\XPack\WinDVD.exe %1

ProgramID: Probe.Document
EXEFile: C:\OrCAD\ORCAD_~1.5_D\tools\PSpice\pspice.exe /dde

ProgramID: Ivi.MediaFile
EXEFile: %ProgramFiles%\InterVideo\DVD7\WinDVD.exe %1

ProgramID: MediaSource.datFile
EXEFile: %ProgramFiles%\Creative\MEDIAS~1\CTCMS.exe /PlayNow %1

ProgramID: NeroShowTime.Files.dat
EXEFile: %ProgramFiles%\Ahead\Nero ShowTime\ShowTime.exe

ProgramID: datfile
EXEFile: %ProgramFiles%\K-Lite Codec Pack\Media Player Classic\mplayerc.exe

ProgramID: ACEMegaCoDecSPack.MPEGVideoFileS
EXEFile: %ProgramFiles%\ACE Mega CoDecS Pack\BSPlayer\bsplayer.exe /open

ProgramID: ALLPlayerFile
EXEFile: %ProgramFiles%\MarBit\ALLPlayer\ALLPlayer.exe

ProgramID: GomPlayer.dat
EXEFile: %ProgramFiles%\GRETECH\GomPlayer\GOM.exe /open

ProgramID: mplayerc.dat
EXEFile: %ProgramFiles%\StormPlayer\mplayerc.exe

ProgramID: Ivi.MediaFile
EXEFile: %ProgramFiles%\InterVideo\WinDVD\WinDVD.exe

ProgramID: DATfile
EXEFile: %ProgramFiles%\Light Alloy\LA.exe

ProgramID: totalplayer.file
EXEFile: %ProgramFiles%\Total Video Player\tvp.exe

ProgramID: DVDXPlayer.Video
EXEFile: %ProgramFiles%\DVD X Studios\DVD X Player 4.0 Professional\DVDXPlayer.exe

ProgramID: PFE32
EXEFile: notepad.exe

ProgramID: IsoBuster.dao
EXEFile: %ProgramFiles%\Smart Projects\IsoBuster\IsoBuster.exe

ProgramID: PowerISO
EXEFile: %ProgramFiles%\PowerISO\PowerISO.exe

ProgramID: Probe.Document
EXEFile: %ProgramFiles%\ORCADL~1\PSpice\pspice.exe

ProgramID: Media_Source_U.datFile
EXEFile: %ProgramFiles%\Creative\MediaSource5\CTCMSu.exe /PlayNow

ProgramID: EasyDVD
EXEFile: %ProgramFiles%\Easy DVD Player\EasyDVD.EXE

ProgramID: totalplayer.file
EXEFile: %ProgramFiles%\Total Video Converter\tvp.exe

ProgramID: datfile
EXEFile: %ProgramFiles%\Mplayer\mplayerc.exe

ProgramID: PDVDfile
EXEFile: %ProgramFiles%\CyberLink\PowerDVD\PowerDVD.exe

ProgramID: Analyst.Document
EXEFile: %ProgramFiles%\Analyst\bin\Analyst.exe

ProgramID: MPlayerFileVideo
EXEFile: %ProgramFiles%\MPlayer for Windows\MPUI.exe

ProgramID: mpegFile
EXEFile: %ProgramFiles%\Windows Media Player\wmplayer.exe /prefetch:9 /Open

ProgramID: ACEMegaCoDecSPack.MPEGVideoFileS
EXEFile: %ProgramFiles%\ACE Mega CoDecS Pack\Media Player Classic\mplayerc.exe

ProgramID: ALShow.DAT
EXEFile: %ProgramFiles%\ESTsoft\ALShow\ALShow.exe

ProgramID: ALLPlayerFile
EXEFile: %ProgramFiles%\ALLPlayer\ALLPlayer.exe

ProgramID: MPlayer
EXEFile: mplay32.exe /play /close

ProgramID: ZPDATFile
EXEFile: %ProgramFiles%\K-Lite Codec Pack\Media Player Classic\mplayerc.exe

ProgramID: KMPlayer.dat
EXEFile: %ProgramFiles%\The KMPlayer\KMPlayer.exe

ProgramID: EMBIRD.File.dat
EXEFile: %ProgramFiles%\EMBIRD32\EMBIRD.EXE

ProgramID: DaemonScriptFile
EXEFile: %ProgramFiles%\DaemonScript\DaemonScript.exe

ProgramID: HDDVDADVFILE
EXEFile: %ProgramFiles%\CyberLink\PowerDVD\PowerDVD.exe

ProgramID: DVDXPlayer.Video
EXEFile: %ProgramFiles%\DVD X Studios\DVD X Player 4.1 Standard\DVDXPlayer.exe

ProgramID: data-file
EXEFile: %ProgramFiles%\Media Player Classic\mplayerc.exe

ProgramID: data-file
EXEFile: %SystemRoot%.0\notepad.exe

ProgramID: GomPlayer.dat
EXEFile: %ProgramFiles%\_Media\Players\GomPlayer\GOM.exe /open

ProgramID: qvodplayer.dat
EXEFile: %ProgramFiles%\QvodPlayer\QvodPlayer.exe -localfile

ProgramID: DigitalFotoMaker.5.dat
EXEFile: %ProgramFiles%\MAGIX\FOTO_M~1\FOTOMA~1.EXE

ProgramID: dasfile
EXEFile: %ProgramFiles%\DAP\DAP.EXE DAS:%l

ProgramID: FantasyDVD Multimedia File
EXEFile: %ProgramFiles%\Combined Community Codec Pack\MPC\mplayerc.exe

ProgramID: Winmail Opener file
EXEFile: %ProgramFiles%\Winmail Opener\wmopener.exe

ProgramID: mplayerc.mpg
EXEFile: %ProgramFiles%\Recode Media\X Codec Pack v2\Media Player Classic\mplayerc.exe

ProgramID: mplayerc.dat
EXEFile: %ProgramFiles%\Ringz Studio\Storm Codec\mplayerc.exe

ProgramID: AgPerfMonCap
EXEFile: %ProgramFiles%\AgPerfMon\AgPerfViewer.EXE

ProgramID: MPlayerFileVideo
EXEFile: %ProgramFiles%\MPlayer\mplayer\smplayer_portable.exe

ProgramID: UltraEdit.dat
EXEFile: %ProgramFiles%\IDM Computer Solutions\UltraEdit\Uedit32.exe

Show all 97 listings To Top

a dat rich text email attachment is a special file format by Microsoft and should only be edited and saved with the appropriate software.

How to solve problems with DAT files

Associate the DAT file extension with the correct application.
Update your software that should actually open rich text email attachments. Because only the current version supports the latest DAT file format. Search, therefore, e.g. on the Microsoft manufacturer website after an available Exchange Server update.
To make sure that your DAT file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .DAT file online - secure, fast, and no downloads needed.