File Extension Search

.qda File Extension

Developer: N/A
File type: Quadruple D Archive
You're here because you have a file that has a file extension ending in .qda. Files with the file extension .qda can only be launched by certain applications. It's possible that .qda files are data files rather than documents or media, which means they're not meant to be viewed at all.

what is a .qda file?

QDA files are used by Quadruple D (Do the DirectDraw with Delphi) as compressed archives. Quadruple D (Do the DirectDraw with Delphi) was developed by a Japanese programmer which is why it is known as a DirectX library for Delphi or graphics library mainly used for Japanese PC games. QDA files are part of this DirectX graphics library meaning they play a big part when it comes to the Japanese PC games written in Delphi. The Quadruple D Archiver that is used to create and open QDA archives is included in the library wherein the archiver is used to read the created files that are saved in the QDA archives. QDA files do not contain the specific information of a file saved on the archive. They mainly refer to the archives that hold these files, especially files used for the Japanese PC games and all the files archived into one library using the Quadruple D archiver.

how to open a .qda file?

Launch a .qda file, or any other file on your PC, by double-clicking it. If your file associations are set up correctly, the application that's meant to open your .qda file will open it. It's possible you may need to download or purchase the correct application. It's also possible that you have the correct application on your PC, but .qda files aren't yet associated with it. In this case, when you try to open a .qda file, you can tell Windows which application is the correct one for that file. From then on, opening a  .qda file will open the correct application. Click here to fix .qda file association errors

applications that open a .qda file

Quadruple D Archiver

Quadruple D Archiver

Quadruple D Archiver is the archiving utility built into the Quadruple D (Do the DirectDraw with Delphi). Quadruple D is a DirectX library for Delphi developed by “SANDMAN”, a Japanese programmer. It is widely used by Japanese game programmers and is in fact the graphics library for Japanese PC games written in Delphi. DirectX library provides a set of application programming interface (API) that users can utilize to create high performance multi-media applications and games, including support for 2D and 3D graphics. The archiver utility combines a number of files together into one archive file, or sometimes creates a series of archive files for easier transportation and storage. The DirectX library archive files are given the .QDA extension file name, which means that these files were created by the Quadruple D Archiver and can be opened only by using the same utility.

a word of warning

Be careful not to rename the extension on .qda files, or any other files. This will not change the file type. Only special conversion software can change a file from one file type to another.

what is a file extension?

A file extension is the set of three or four characters at the end of a filename; in this case, .qda. File extensions tell you what type of file it is, and tell Windows what programs can open it. Windows often associates a default program to each file extension, so that when you double-click the file, the program launches automatically. When that program is no longer on your PC, you can sometimes get an error when you try to open the associated file.

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