QDA Converter

Extract text from QDA files


Drop or upload your .QDA file
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How to extract text from your QDA file

  1. Click the "Select File" button above, and choose your QDA file.
  2. You’ll see a preview, if available.
  3. Click the "Convert file to..." button to extract text information.

Convert QDA to another file type

To convert your QDA file to another format, you need QtiPlot or other Data software.

Convert a file to QDA

To convert other file formats to the "Scientific Project File" file type, you need software like QtiPlot or a similar tool.


About QDA files

The .qda file extension is primarily associated with QtiPlot, a software application used for scientific data analysis and visualization. These files act as comprehensive project containers, storing not just the raw numerical datasets (matrices and tables), but also the associated 2D/3D graphs, plot layers, and analysis history. While powerful for active research, the .qda format presents significant challenges for collaboration and archiving. It is a proprietary binary or XML-based format that requires the specific QtiPlot software - which has shifted from open-source to a paid commercial license - to open or edit. This creates a "vendor lock-in" scenario where valuable experimental data becomes inaccessible without the correct software version. Furthermore, .qda files are not supported by standard office suites or web browsers, making them impossible to preview in emails or cloud storage. To ensure long-term data accessibility and ease of sharing, it is highly recommended to convert the underlying data tables to CSV or Microsoft Excel (.XLSX) formats, and the visual plots to PDF or standard image formats like PNG or SVG.

Convert.Guru analyzes your QDA file, detects the exact format, and lets you read the text inside.

Users also converted QLT, QSC and QPC files.


FAQ

If you want to convert QDA file to ZIP, RAR, 7Z, TAR, GZ, BZ2, XZ, LZMA, CAB, ACE, ARJ or LHA, you can use QtiPlot or similar software from the "Scientific Data Analysis" category. In the File menu, look for Save As… or Export….

To convert XXE, 7Z, Z, PAK, LHA, DEB, UUE, TAR, LZH, ZIP, PKG or RAR files to QDA, try QtiPlot or another comparable tool in the "Scientific Data Analysis" category.



The QDA Converter Story

The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our QDA converter.