DQY File Extension
Excel Query Format
- File Type dqy
- Developer Microsoft
- Popularity
- Application Microsoft Excel
- Category Developer Files, Text Files
- Format Binary
What is a DQY file?
The DQY file extension is linked to Excel Query Format and belongs to the categories of Developer Files and Text Files, which include 1481 files.
The Excel Query Format (DQY) was developed by Microsoft, which created file format and 242 programs to work with them.
DQY files are supported by Windows and Mac OS. To open a DQY file, you can choose from 2 programs such as Microsoft Excel and Microsoft Office.
Programs that support DQY files
How to open a DQY file?
If you cannot open a DQY file, it is most often due to missing software. Select a program from the list according to your operating system. Then go to the official website of the program developer, download it, and install it on your device.
Microsoft Excel and Microsoft Office stand out as the preferred programs to manage DQY files effectively. To install the current version of Microsoft Excel, go directly to the official Microsoft website. The universal package for all operating systems is available there.
After successful installation, your operating system should seamlessly handle DQY files via Microsoft Excel.
Set Microsoft Excel as the default DQY program
Change Default Program on Mac
- Right click or Control + left click on the desired DQY file;
- Choose "Open in Application" and click "Other";
- Go to the lower section of the window, where you will find the "Enable" menu. By default, it is set to "Recommended Programs";
- Select "All Programs" from this menu and proceed to search for Microsoft Excel. Check the box next to "Always open in app" to set it as the default option.
Set default programs for Windows
- Start by right-clicking on your DQY file, then select the "Open with" option and choose "Choose another app" from the menu that appears;
- In the pop-up window, select the Microsoft Excel application;
- Check the "Always use this application" checkbox, and then click "OK" to apply the selected application as the default for opening DQY files.
Convert files to and from DQY
For difficult DQY files, try converting them to formats like XLS or similar formats to improve usability.
Be aware that converting a DQY file may reduce some features, but you can usually revert it to the original format.
Convert DQY to other file formats
Solve problems with DQY files
DQY files may present some challenges, but most can be easily addressed with minor software tweaks. See the troubleshooting tips below for guidance.
What are the ways to check if my DQY file is damaged?
DQY developer files that have become corrupted may display one or more of the following symptoms:
- The file does not respond or shows errors when opening it;
- The file exhibits poor performance during editing operations in Microsoft Excel;
- The file stops responding or freezes in Microsoft Excel or other programs;
- Unexplained DQY file size inflation;
- Actions performed on the file result in the appearance of error notifications;
Why does Microsoft Excel crash or shut down frequently?
Insufficient updates for Microsoft products can cause Microsoft Excel to crash. Be sure to regularly install the latest software updates.
Restarting your computer will solve many common problems, which is why it’s the first thing you should do before changing any settings related to the software.
Is there any specific software or utility that can help repair a damaged DQY file?
Use a recovery program to open the damaged DQY file, and in the menu, click "Repair" to start the repair operation. Wait for the recovery process to finish, allowing automatic repair of damaged developer files.
How to edit a DQY file?
To make changes to DQY files, you need specialized software that allows both opening and editing the developer files. Online DQY editors offer fewer capabilities than applications optimized for Excel Query Format.
Best DQY Editor Software in 2026
With the mentioned criteria in mind, we have assembled a selection of DQY editors.
| DQY Editor Software | Developer | Platforms | Overall Rating |
|---|---|---|---|
| Microsoft Excel | Microsoft | Windows, Mac OS, Apple iOS, Android | 4.7 out of 5 (37 reviews) |