>> QDA file

QDA file format description

Many people share .qda files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .qda file can be edited, converted or printed with. On this page, we try to provide assistance for handling .qda files.

2 filename extension(s) found in our database.

.qda - KaleidaGraph Data

The QDA data files are related to KaleidaGraph. The QDA file is a KaleidaGraph Data. KaleidaGraph is a data analysis and graphing program for use with the Windows and Macintosh platforms.

Data files
- / -
KaleidaGraph Data related extensions:
KaleidaGraph Macro
KaleidaGraph Data
KaleidaGraph Plot
KaleidaGraph Layout
KaleidaGraph Script
KaleidaGraph Style

.qda - Quadruple D Archive

The QDA archive files are related to Quadruple D. The QDA file is a Quadruple D Archive. Quadruple D is a third party DirectX library for Delphi programming language. The Quadruple D seems to be no longer supported.

Quadruple D
Archive files
- / -
Quadruple D Archive related extensions:
Micro Vault Virtual Expander File
LZG Compressed Data
DIVA-GIS Exported Project
VMware vSphere Installation Bundle Package
Mac OS X Universal Binary Package
Web Research Document Archive

Naturally, other applications may also use the .qda file extension. Even harmful programs can create .qda files. Be especially cautious with .qda files coming from an unknown source!

Can't open a .qda file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .qda file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

da, dqa, qa, qad, qca, qd, qdw, qdx, qdz

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

GPS Quality Assessment Data
QDesign Audio
Altera Quartus II Device Package
Gcov Data File
Sharp MZ-series Emulator Quick Disk Data
Daqarta Data File

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8, Windows 10, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, Mac OS X, iOS, Android

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