File Extension Search

.qdl File Extension

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

what is a .qdl file?

A wide variety of Microsoft Windows OS versions can open or execute QDL files, which are program files created using the Cue Description Language. These program files with the QDL extension are essentially software applications designed to run in compatible Microsoft Windows platforms. A user needs to manually double click on a QDL file to initialize it and run the program. The Cue Description Language was formulated to serve as programming code that can develop efficient machine and human readable applications. Quick and easy execution, creation and parsing advantages in the development of program files are also some of the objectives in the creation of the QDL extension and these associated applications that use the Cue Description Language. Files with the QDL extension can be viewed or opened using widely popular text editors like Microsoft Notepad and Microsoft WordPad.

how to open a .qdl file?

Launch a .qdl 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 .qdl 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 .qdl files aren't yet associated with it. In this case, when you try to open a .qdl file, you can tell Windows which application is the correct one for that file. From then on, opening a  .qdl file will open the correct application. Click here to fix .qdl file association errors

applications that open a .qdl file

Microsoft Notepad

Microsoft Notepad

Notepad is a basic text editor used to create plain documents. It is commonly used to view or edit text (.txt) files, and a simple tool for creating Web pages, and supports only the basic formatting in HTML documents. It also has a simple built-in logging function. Each time a file that initializes with .log is opened, the program inserts a text timestamp on the last line of the file. It accepts text from the Windows clipboard. This is helpful in stripping embedded font type and style codes from formatted text, such as when copying text from a Web page and pasting into an email message or other “What You See Is What You Get” text editor. The formatted text is temporarily pasted into Notepad, and then immediately copied again in stripped format to be pasted into the other program. Simple text editors like Notepad may be utilized to change text with markup, such as HTML. Early versions of Notepad offered only the most basic functions, such as finding text. Newer versions of Windows include an updated version of Notepad with a search and replace function (Ctrl + H), as well as Ctrl + F for search and similar keyboard shortcuts. It makes use of a built-in window class named edit. In older versions such as Windows 95, Windows 98, Windows Me and Windows 3.1, there is a 64k limit on the size of the file being edited, an operating system limit of the EDIT class.
Microsoft WordPad

Microsoft WordPad

Files with .rtf, .openbsd, and .readme extensions are some of the files associated or which can be opened with the Microsoft WordPad. RTF files are text documents that can be created, opened, viewed, edited or changed using word processing applications for both Mac and Microsoft Windows-based computers, like Microsoft WordPad for Windows and Microsoft Word 2011 for Mac. It gives the users a wide cross compatibility support, which was the central objective for the improvement of the Rich Text Format technology, and these .rtf files can even be opened, viewed and used with database applications. The OpenBSD Unix platform is frequently utilized in computers running as Web servers of a secure network. OpenBSD files may be saved in directories of the OpenBSD system that were generated upon installation of the software applications. Files with the .openbsd extension can be opened by standard text editors, particularly well-known like Microsoft Notepad, and this text editor may also be utilized to create and edit OPENBSD files. Files with the .readme extension are text documents engaged to give users with beneficial information and specific details about certain applications installed in the system. These files can be opened, viewed and edited with a selection of text editors including Microsoft Notepad and Microsoft WordPad.


The Notepad2 application is a more advanced text editor for Windows developed by Florian Balmer. This program originated from the original built-in Microsoft Notepad which is why it is also effective and fast even when it is small. Notepad2 also has a lot of features such as syntax highlighting that allows a text or a source code to be displayed using different fonts and colors. This syntax highlighting feature of notepad2 allows users to write programming language easily and distinctly. This amazing function of Notepad2 is also owing to several other features it possess such as auto indentation, regular and expression-based find and replace feature, bracket matching, newline conversion, encoding conversion as well as multiple undo and redo features. These features make the function of the simple Notepad more advanced and it makes Notepad more interesting to use either to open files in .txt format or to write HTML codes. Notepad2 also supports many programming languages such as ASP, C++, Perl, Java, etc.
Microsoft Word

Microsoft Word

Microsoft Word is a word processor program that is packed in the Microsoft Office Suite. It is developed by Microsoft Corporation, generating a .doc file extension when the file is saved. A document file format (.doc) is a text or binary file format for saving documents on a storage media, mainly for computer use, like typing text, charts, tables, page formatting, graphs, images and other documents whose content is created and edited. Contents of these documents are printable in any sizes and are capable to open in other devices provided that its operating system is able to read DOC files. This .doc file extension has become extensive de facto standard for office documents, but it is an owned format and is not always totally supported by other word processors. A variety of programs that is able to open this type of file, and different operating systems and have installed programs that can open a 1ST file are: Microsoft Word, Microsoft Notepad, Microsoft Word, IBM Lotus WordPro, and Corel WordPerfect.

a word of warning

Be careful not to rename the extension on .qdl 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, .qdl. 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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