OBX File Extension

Rational XDE
- File Type obx
- Developer IBM
- Popularity
- Application Rational XDE
- Category Data Files
What is a OBX file?
The OBX file extension is linked to Rational XDE and belongs to the Data Files category, which includes 6196 files.
The Rational XDE (OBX) was developed by IBM, which created file format and 70 programs to work with them.
OBX files are compatible with various operating systems, including Linux, Windows and Mac OS. To create a OBX file, you can choose from 2 programs such as Rational XDE and Rational Rose Developer.
Programs that support OBX files
How to open a OBX file?
If you cannot open a OBX 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.
Rational XDE and Rational Rose Developer are recognized as the most popular software solutions for dealing with OBX files. To set up the newest version of Rational XDE on your device, simply go to the official IBM website. There you can download the edition compatible with every operating system.
Once installed, Rational XDE will be set as the default program, and OBX files will open automatically.
Set Rational XDE to open OBX by default
Setting a default program by file type in Windows
- Right click on your OBX file, then select "Open with" and click "Choose another application";
- Find the Rational XDE application in the pop-up window and select it as your preferred program;
- Select the "Always use this application" check box and click "OK" to save your selection as the default application for opening OBX files.
Change default apps on Mac
- Right-click or use Control + Left-click on the desired OBX file to access the file’s context menu;
- Select "Open in application" and click "Other";
- At the bottom of the window, find the "Enable" menu, where "Recommended Programs" is already selected by default;
- Within this menu, select "All Programs" and then locate Rational XDE. Check the box next to "Always open in app" to set it as the default program.
How to edit a OBX file?
Editing OBX files requires installing professional software that lets you open and edit data files. Online editors have more limitations compared to dedicated Rational XDE programs.
Best OBX editors in 2026
Considering the mentioned criteria, we have compiled a list of OBX editors that may suit your needs.
| OBX Editor Software | Developer | Platforms | Overall Rating |
|---|---|---|---|
| Rational XDE | IBM | Windows, Mac OS, Linux | 4.6 out of 5 (39 reviews) |
| Rational Rose Developer | IBM | Linux, Windows, Mac OS | 4.2 out of 5 (38 reviews) |
Easy OBX Troubleshooting
Certain problems with OBX files can be conveniently fixed with small software tweaks. Here are some helpful tips to address them.
What are the steps to repair a damaged OBX file?
Open the corrupted OBX file in a recovery program and select the "Repair" menu item. Please be patient while the recovery process completes, which will automatically restore the damaged data files.
How do I know if my OBX file is corrupted?
Corrupted OBX data files may show the following signs:
- Attempts to open the file result in errors or failed results;
- Editing the archive in Rational XDE is accompanied by slow performance or delays;
- The file causes Rational XDE or other programs to hang or crash during operation;
- Unexplained increase in OBX file size;
- Error messages appear while working with the file;
What are the reasons behind Rational XDE crash?
The likely cause of Rational XDE crashing is lack of software updates. Install the latest updates available for IBM products.
Restarting your computer is often an effective solution to resolve various common problems. Therefore, it is recommended to do so before making any changes to the software configuration.





