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Basic information about DFQ file

When there is a problem with opening files with the file extension DFQ（*.DFQ or *.dfq）, you do not need a computer expert. In most cases, using the helpful suggestions of experts contained in our website as well as appropriate programs, you can solve the problem with the DFQ file yourself.

There are 1 file types using the DFQ file extension in our database. In the further part of this page, you will find detail information about all the DFQ file with their brief description and a list of programs that support DFQ file sorted by operating systems. The table below provides useful information about the DFQ file extension. It answers questions such as:
  • What is the DFQ file?
  • How to open a DFQ file?
  • What programs do I need to open a DFQ file?
  • What programs help to create and edit a DFQ file?
  • How to convert DFQ files to another file format?
  • How to convert another files to DFQ file format?


1.Detail information about DFQ file extension: SmartWare Query Definition

File type SmartWare Query Definition Category Settings Files
Developer SmartWare Corporation File format N/A
Description DFQ file is a SmartWare Query Definition developed by SmartWare Corporation. DFQ filename suffix is mostly used for SmartWare Query Definition files. SmartWare Query Definition format was developed by SmartWare Corporation. Files with DFQ extension may be used by programs distributed for Windows platform. Files with DFQ extension are categorized as Settings Files files. The Settings Files subset comprises 1087 various file formats. The most popular software that supports DFQ files is SmartWare. SmartWare software was developed by SmartWare Corporation, and on its official website you may find more information about DFQ files or the SmartWare software program.
Software programs that will open, edit or convert DFQ files

Windows		 SmartWare



Can't open a DFQ file?

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

”Can't open this file: example.DFQ”。

To open this file, you install one of the applications from the list of software programs that you found here, you should be able to open, edit or convert the file with the DFQ extension without any issue.


Where I can download the application that support DFQ file?

If you do not know where you can download the application from our list, click on the link (which is the name of the program), you will find more information there on the location where to download the required application. Most often they are the websites of software manufacturers.


How to change file associations?

  • Right-click a file with the extension whose association you want to change, and then click "Open With".
  • In the "Open With" dialog box, click the program whith which you want the file to open, or click "Browse" to locate the program that you want.
  • Select the ”Always use the selected program to open this kind of file” check box.


Can I change the extension of DFQ files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read/open the file. The problem is, changing the file extension does not change the file format. Select a software program from our list and install it on your computer. If the file has not opened correctly, you have to look for a different software program from our list. Sometimes you have to repeat the operation several times.


What else may cause problems width open a DFQ file?

The reasons for the lack of the ability to open a DFQ file on your computer may be at least several. The easiest thing is to find a suitable application installed on your computer, which will open a DFQ file. If there is still something wrong, you might want to check:

  • Whether the DFQ file is damaged.
  • Whether the DFQ file is incorrectly linked in the registry entries.
  • Whether the DFQ file extension has been accidentally removed from the Windows registry.
  • Whether the installation of an application that supports the DFQ file format is incompletely.
  • Whether the DFQ file is infected.
  • Whether the drivers of the equipment used for opening a DFQ file are up to date.
  • Whether your computer has enough hardware resources to open a DFQ file.

If the DFQ file still not working with your software after eliminating the above shortcomings? That means that the problem is more complex and requires the help of a specialist.