A qda file extension is associated with the Quadruple D archive format.

Detailed description

Software that open qda file

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QDA file extension - Quadruple D archive

What is qda file? How to open qda files?

File type specification:

Archive and compressed file type icon Archive and compressed file type

The qda file extension is related to the Quadruple D archive format.

Quadruple D (Do the DirectDraw with Delphi) is a DirectX library for Delphi developed by a Japanese programmer named SANDMAN. It has become the de-facto graphics library for Japanese PC games written in Delphi.

In addition to DirectX routines, the library also includes the Quadruple D Archiver tool, and contains functions to read files from the QDA archives created by the archiver.

This qda file type entry was marked as obsolete and no longer supported file format.

This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.

The default software associated to open qda file:

Delphi icon

Embarcadero Technologies, Inc. logoDelphi  Microsoft Windows software

Company or developer:
Embarcadero Technologies, Inc.

Delphi is integrated development environment used to create applications fort Microsoft Windows. It supports Delphi programming language (Object Pascal), C++, C# for Microsoft .NET.

Help how to open:

This file type is not meant to be opened directly, there is no software that could open and work with it directly, or there is no information available in public sources about opening this file type. This is usually the case of some internal data files, caches, temporary files etc.

How to convert:

As far as we know, this .qda file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.

List of recommended software applications associated to the .qda file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open qda file, edit qda file, convert qda file, view qda file, play qda file etc. (if exist software for corresponding action in File-Extensions.org's database).

Unspecified and all other actions for computer programs working with qda file - Quadruple D archive

Click on the software link for more information about Delphi. Delphi uses qda file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).

Microsoft Windows:

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