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QDA File

What are QDA files and how to open them

Are you having problems opening a QDA file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your QDA files.

What is a QDA file?

A .QDA file is a Quadruple D Archiver Compressed Archive file.

We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

How to open QDA files

Important: Different programs may use files with the QDA file extension for different purposes, so unless you are sure which format your QDA file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested four different QDA openers which you will find listed below.

Last updated: December 22, 2015

Various apps that use files with this extension

These apps are known to open certain types of QDA files. Remember, different programs may use QDA files for different purposes, so you may need to try out a few of them to be able to open your specific file.

KaleidaGraphKaleidaGraphUser submitted
NVivoNVivoUser submitted
Accident Reconstruction ProfessionalAccident Reconstruction ProfessionalUser submitted
NUD*IST VivoNUD*IST VivoUser submitted

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about QDA file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.