WB3 File Extension

Corel Quattro Pro 7 And 8 Format
- File Type wb3
- Developer Corel
- Popularity
- Application Corel Quattro Pro
- Category Spreadsheet Files
- Format Binary
What is a WB3 file?
The WB3 file extension is linked to Corel Quattro Pro 7 And 8 Format and belongs to the Spreadsheet Files category, which includes 113 files.
With the creation of the Corel Quattro Pro 7 And 8 Format (WB3), Corel introduced file format along with 27 programs built for their use.
WB3 files are supported by Windows. You can open a WB3 file using one of 2 programs, for example Corel Quattro Pro and WordPerfect Office.
MIME types
- application/wb3
- application/x-wb3
- application/x-qpro
- application/x-QuattroPro-viewer
- application/x-quattropro
- application/x-quattro-win
How to open a WB3 file?
The most common reason why a WB3 file cannot be opened is the absence of required software. To fix this, select a compatible program from the list. Then visit the official developer website via the provided link, download the program, and install it on your system.
The most popular programs for working with WB3 files are Corel Quattro Pro and WordPerfect Office. To get the latest version of Corel Quattro Pro, open the Corel website where a universal installer for all operating systems is available.
Following installation, WB3 files should be automatically opened with Corel Quattro Pro.
Set Corel Quattro Pro as the default WB3 program
Changing the default program in Windows
- Start by right-clicking on your WB3 file and selecting the "Open With" option. From there, click "Choose another app" to continue;
- In the pop-up window, select the Corel Quattro Pro application;
- Check the "Always use this application" checkbox, and then click "OK" to apply the selected application as the default for opening WB3 files.
Change Default Program on Mac
- Right click or Control + left click on the desired WB3 file;
- Select "Open in application" and click "Other";
- Look at the bottom of the window, where you will see the "Enable" menu. "Recommended Programs" will be selected as the default option;
- Within this menu select "All Programs" and navigate to Corel Quattro Pro. Check the box next to "Always open in app" to make sure it’s the default option.
Convert to and from WB3
If a WB3 file is difficult to handle, you might try converting it to formats such as XLS, XLSX or similar, which may be easier to work with.
Please note that after converting a WB3 file, some functionality may differ from the original. However, in many cases, it can be converted back to its original format.
Using offline applications such as Corel Quattro Pro, you can convert WB3 files to various formats without losing data quality.
Convert WB3 to other file formats
Solve problems with WB3 files
When issues arise with WB3 files, they can generally be fixed with small software tweaks. Use the troubleshooting tips below to help resolve them.
What are the signs that my WB3 file is damaged?
Corrupted WB3 spreadsheet files may have one or more of the following symptoms:
- Poor performance when editing a file in Corel Quattro Pro;
- File hangs or crashes in Corel Quattro Pro or other programs;
- The file does not open or opens with errors;
- Unexplained increase in WB3 file size;
- Working with the file triggers the display of error messages;
Why does Corel Quattro Pro quit or crash unexpectedly?
Corel Quattro Pro crashes can be attributed to outdated software. Make sure you have installed the latest updates for Corel products.
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.
What methods can be used to repair a damaged WB3 file?
Use a recovery program to open the damaged WB3 file and navigate to the "Repair" menu item. Then wait for the recovery process to complete, which allows you to automatically repair corrupted spreadsheet files.
How to edit a WB3 file?
To edit WB3 files, you need to install specialized software that allows you not only to open but also to modify spreadsheet files. Online WB3 editors usually provide fewer features than software created specifically for Corel Quattro Pro 7 And 8 Format.
Best WB3 editors in 2026
Taking into account the provided details, we have prepared a list of WB3 editors that match your needs.
| WB3 Editor Software | Developer | Platforms | Overall Rating |
|---|---|---|---|
| Corel Quattro Pro | Corel | Windows | 4.4 out of 5 (40 reviews) |



