PBX file: How can I open a .PBX file?
The table below provides useful information about the .pbx file extension. It answers questions such as:
- What is the .pbx file?
- What program do I need to open a .pbx file?
- How can the .pbx file be opened, edited or printed?
- How can I convert .pbx files to another format?
We hope you find this page helpful and a valuable resource.
✅ Sybase PowerBuilder Extension

The PBX file is a Sybase PowerBuilder Extension. Sybase PowerBuilder is a rapid application development (RAD) tool for building, maintaining and modernizing business-critical Windows.
✅ Atari ST QuantumPaint Image

The PBX file is an Atari ST QuantumPaint Image. The Atari ST is a line of home computers from Atari Corporation and the successor to the Atari 8-bit family.
⚠ Be careful with .pbx files.
It's important to know that the .pbx file extension can be used by various programs, not just the ones you expect. This includes potentially harmful software or malware that might create .pbx files. Be cautious when dealing with .pbx files from unknown sources.
🚫 The .pbx file extension is often given incorrectly!
According to the searches on our site, these misspellings were the most common in the past year:
Is it possible that the filename extension is misspelled?
We found the following similar file extensions in our database:
🔴 Can't open a .pbx file?
When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:
Select an app to open this .pbx file
It means that the operating system does not have a default app associated with the .pbx file type. To resolve this issue and open the file, you can take the following steps:
- Right-click on the .pbx file. A context menu will appear.
- From the context menu, select Open with. Windows will display a list of recommended apps.
- If the desired app is listed, select it from the provided options.
- If you cannot find the appropriate app, you may need to install software that supports the specific file type.
If you don't know how to change the default app for the .pbx file, check the FAQ.
🔴 Can I change the extension of files?
Changing the filename extension of a file is not a good idea. The extension of a file serves as a hint to the operating system and various software programs about the type of data contained within the file. When you alter a file's extension, you essentially modify how software applications interpret and handle that file. Every file has a specific format, also known as its file type or file format. The problem is, changing the file extension does not change the file format.
If you have helpful information about the .pbx file extension, write to us.