Opening a QDA File

The QDA file type is primarily associated with KaleidaGraph.

QDA	File extension: QDA
	File type:	file containing graphing data

What is a QDA file?

QDA files mostly belong to KaleidaGraph by Synergy Software. QDA files are compressed archives used by Quadruple D, also known as Do the DirectDraw with Delphi.

Main Usage: QDA files are created and opened using the Quadruple D Archiver software. The format is primarily used by PC games written in Delphi. A common use for this file format is to refer to files stored outside of the QDA file, often in other compressed archive formats. Quadruple D Archiver is often included in the libraries of games which use QDA files in order to decompress and read the contents of these files, which is necessary for the game to make use of these assets.

How can I open a QDA file?

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

Online QDA Text Viewer

Choose your .qda file to analyze

or drag and drop it here

Online File Viewer

✈

Read our privacy guarantee in Filext’s terms and privacy policy

Please allow ads on our site

This helps us keep our servers running. Then re-upload your file to view it.

Click here to see how to disable the ad blocker for filext.com

Programs that open and convert QDA files:

KaleidaGraph by Synergy Software
See the previous paragraphs to learn more about the main application. QDA files are often referred to as KaleidaGraph data files because this type of file is primarily created or used by this software.
Delphi (archived file associated with library) by Embercadero
QDA is the file format associated with the QuadrupleD, a DirectX library for Delphi. This library was developed by a Japanese developer Sandman and has become the de-facto graphics library for Japanese games written in Delphi. The QDA is the file format associated with archived files created by QuadrupleD Archiver and can be opened by Delphi. This file format is classified as Compressed. Related links: QuadrupleD features

QDA file format:

Each file has a definite file format, that is, how the stored data is arranged in the file. Often, the file format can be deduced from the file extension or the initial bytes (called the signature). Nonetheless, different programs can utilize the same file extension to represent distinct file formats. Double-clicking on the file often results in an error when opening. If there are problems opening a file, you must first determine the file format used. Below you will find our evaluation of the QDA files:

The QDA file extension is not common and includes different formats for the applicable programs. The two most common formats are as follows:

60% of all QDA files use the same file format, which have the signature 00 0D 00. These are binary files, so they do not contain words or text. The files are on average 7 KB in size and range from 3 KB to 170 KB. The file type was created 10 years ago, but is still used today. Such files are related to data and gamma.
8% of all QDA files have the same signature 00 0C 00. These files are binary files, so they do not contain text, but only cryptic characters. The files are often between 2 KB and 98 KB in size.

All other QDA files (32%) have no consistent format. Often described as archived, results or manu. Drag & drop your file here to see the file format and a preview of your QDA file!

Technical Data for QDA File Extension

File classification:

Data

Related files:

qpc, qdp, qpl, qsc

Related links:

Kaleidagraph additional info

Mime type:

application/octet-stream

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: KGraph_Data_File
EXEFile: %ProgramFiles%\KALEID~1\KGraph.exe

a qda file containing graphing data is a special file format by Synergy Software and should only be edited and saved with the appropriate software.

How to solve problems with QDA files

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