QDA File Type

- The quick facts

What are QDA files and how to open them

Are you having problems opening a QDA file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your 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 4 different QDA openers which you will find listed below.

Last updated: December 22, 2015

Suggest another file format using extension QDA

While we know of one file format using the .QDA file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .QDA file.

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