What is a QDA file?
A .QDA file is primarily used for scientific data analysis, graphing, or diagnostic test archiving. Because multiple developers use the .QDA file extension, your file could belong to several different applications. It might be a data project from QtiPlot, Igor Pro, or KaleidaGraph. Alternatively, it can be a diagnostic archive from a QIAGEN QIAstat-Dx system, which stores data using standard ZIP compression. Other variations include qualitative research data from QDA Miner and archive files for the Q-Dir file manager.
How to open QDA files?
To open a .QDA file on your computer, you must identify the correct software. If the file contains scientific data, you can open it with QtiPlot. If it is a medical diagnostic archive, you can rename the extension to .ZIP or use command-line extraction tools and software like 7-Zip. If the file belongs to QDA Miner, you need that specific qualitative research application.
Inspect and analyze with viewer.online
If you do not know which program created your file, do not guess or install random software. viewer.online/qda can analyze .QDA files to identify the exact format and creator software, inspect the file structure, extract readable text, and check whether an online preview is available.
Summary
Because the .QDA extension has multiple possible meanings, viewer.online/qda is useful for identifying, inspecting, and understanding .QDA files without installing software or dealing with compatibility problems.