Opening a DA File

The DA file type is primarily associated with Analysis software.

DA	File extension: DA
	File type:	data file

What is a DA file?

DA files mostly belong to Analysis software. Your DA file is not defined by one single standard. It can be used in several specialized contexts.
Below are some common uses:

Data Analysis / Genetic Data Array: These files may hold structured data used for research. They store numerical arrays or similar data sets for analysis.

Data Acquisition / Direct Access Backup: In some cases, a DA file records data coming directly from devices or acts as a backup file. Tools like those from IDA Pro sometimes create such files.

Decision Analysis: Some DA files work as project files for decision support. They contain models and scenarios used in decision analysis. For example, Analytica uses these files. See this reference.

Waveform Audio Format: A few DA files use the RIFF structure to store compressed audio. These are compatible with media players like Windows Media Player. More details are available at Microsoft Support.

FilExt.com note: The best way to decide how to open your file is to inspect its header or metadata. The proper viewing or editing application depends on the file’s origin.

How can I open a DA file?

You need a suitable software like Analysis software to open a DA 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 DA file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a DA file directly in the browser:. Just drag the file onto this browser window and drop it.

Online DA Text Viewer

Choose your .da file to analyze

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Online File Viewer

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Programs that open and convert DA files:

Analysis software
See the previous paragraphs to learn more about the main application. DA files are often referred to as Analysis software data files because this type of file is primarily created or used by this software.
Air Duct System Design (DAwin. Distribución de aire) (Project Data File) by Procedimientos-Uno, SL
DAwin is a CAD/CAE product for HVAC design. The program tackles the duct design as described in the ASHRAE Handbook. The DA file contains all project data, from specific to geometrical layout to general administrative information. This file format is classified as CAD/CAM. Related links: PDA Viewer for DA File Extension
DynApp (Dynamic Application Template File) by e-Synaptix (DynApp Inc.)
DynApp products are designed to provide you with powerful dynamic website and application building tools. The Mime types used with this association are: magnus-internal/cold-fusion. This file format is classified as Source Code.
Playstation (CD-DA Format) by Sony Corporation of America
Reports are that this sound format can be played in Windows Media Player 10, 11, and up and RealPlayer (but must be renamed from *.DA to *.MID). Windows Media Player 9 is not supported. This file format is classified as Audio. Related links: Playstation Utilities

DA file format:

The file format determines how the data is stored in the file. The first characters in a file identify the file format, for example, HTML files start with the bytes <html>. However, different programs can use the same file extension, and file extensions can be assigned incorrectly. Exact knowledge of the format is therefore important in order to solve problems occurring in files. Our evaluation of the DA files is as follows:

The DA file extension is rather rarely used and includes a lot of different file formats for different programs. The file formats most commonly found in DA files are:

15% of all DA files have the same signature 0100. These files are plain text, which means they can be viewed with any text editor such as Windows Editor, Nano for Linux, and TextEdit for macOS. The average file size is 2 MB with most files being between 660 KB and 6 MB in size. H16A_H.da is a typical file name.
8% of all DA files use the same file format, which can be identified by the letters "0000030" at the beginning. These files are text files, so they contain words and text. The file size is in the range of 1 MB to 13 MB.

The remaining 77% of all DA files are files with no common format, often e.g. RIFF. They are often associated with list, dynamic, shading, dummy, first, assistant, autonomy, hospital, doctor, encode, tekken or dest. Just click the "Choose your .da file to analyze" button on this page to find out what your DA file is.

Technical Data for DA File Extension

File classification:

Data

Related files:

da_, d_a, 12da, da1, dat, dmy, zip, bin, dav, cts, txt, cti, exe, en, ic, wav, xml, csv, bak

Related links:

PDA Viewer for DA File Extension

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: Access.Extension.10
EXEFile: %ProgramFiles%\MI1933~1\Office10\MSACCESS.EXE /NOSTARTUP %1

ProgramID: Access.Extension.11
EXEFile: %ProgramFiles%\MICROS~2\OFFICE11\MSACCESS.EXE /NOSTARTUP %1

ProgramID: Access.Extension.8
EXEFile: %ProgramFiles%\Microsoft Office\Office\MSACCESS.EXE /NOSTARTUP %1

ProgramID: Access.Extension.9
EXEFile: %ProgramFiles%\MICROS~2\Office\MSACCESS.EXE /NOSTARTUP %1

ProgramID: CDAFile
EXEFile: %ProgramFiles%\Windows Media Player\wmplayer.exe /Open %L

ProgramID: FView.vda
EXEFile: %ProgramFiles%\FreshDevices\FreshView\fview.exe %1

ProgramID: iTunes.cda
EXEFile: %ProgramFiles%\iTunes\iTunes.exe /open %L

ProgramID: Photoshop.TGAFile
EXEFile: %ProgramFiles%\Adobe\Photoshop 7.0\Photoshop.exe %1

ProgramID: Photoshop.TGAFile.8
EXEFile: %ProgramFiles%\Adobe\Photoshop CS\Photoshop.exe %1

ProgramID: RealJukebox.CDA.1
EXEFile: %ProgramFiles%\Real\RealOne Player\RealPlay.exe %1

ProgramID: RealJukebox.CDA.1
EXEFile: %ProgramFiles%\Real\RealPlayer\RealPlay.exe %1

ProgramID: soffice.StarDrawDocument.5
EXEFile: %ProgramFiles%\OpenOffice.org1.0.1\program\soffice.exe -o %1

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

ProgramID: Winamp3.File
EXEFile: %ProgramFiles%\Winamp3\winamp3.exe %1

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a da data file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with DA files

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