.FXB

.FXB File Extension

Learn what a .fxb file is, what it is used for, which programs can open it, and how to convert or troubleshoot this file format.

Audio File Extension Guide 57 Searches
.FXB
VST Preset Bank

Quick Facts

Basic information about this file format

Extension
.FXB
File Type
VST Preset Bank
Category
Audio
Best first step
Use compatible software

Quick Summary

A practical overview of the .fxb file format

The FXB file extension stands for FX Bank and is a proprietary format developed by Steinberg for use with Virtual Studio Technology (VST) plugins. It is specifically designed to store a collection or 'bank' of presets for a software instrument or effect plugin. While an FXP file stores a single pre…

File extension .FXB
File type VST Preset Bank
Category Audio
Recommended action Open with a trusted compatible app

How to open a .fxb file

Start with a trusted app that supports this format

  • Check the file extension carefully and confirm that the file name really ends with .fxb.
  • Use software that supports this file type. If one app does not work, try another compatible program for the same platform.
  • Update the application if the file was created by a newer version of the software.
  • Scan files from unknown sources before opening them, especially documents, archives, scripts, installers, and executable files.

What is a .fxb file?

File extension details and usage information

The FXB file extension stands for FX Bank and is a proprietary format developed by Steinberg for use with Virtual Studio Technology (VST) plugins. It is specifically designed to store a collection or 'bank' of presets for a software instrument or effect plugin. While an FXP file stores a single preset (FX Program), an FXB file contains an entire set of programs that can be loaded into a plugin simultaneously, allowing musicians and sound designers to organize and switch between multiple sounds quickly. This format was the industry standard during the VST 2.4 era and remains widely used for legacy software and older sound libraries. In modern music production, the FXB format has been largely superseded by the VST 3 preset format (.vstpreset), which offers improved metadata handling and better cross-platform compatibility. However, most professional Digital Audio Workstations (DAWs) still maintain support for FXB files to ensure that users can access historical sound banks and third-party patch libraries created over the last two decades.

Software Compatibility

Programs that may open or work with .fxb files

Windows

Compatible applications

Steinberg Cubase Compatible
Ableton Live Compatible
FL Studio Compatible
PreSonus Studio One Compatible
REAPER Compatible
Cakewalk by BandLab Compatible

macOS

Compatible applications

Steinberg Cubase Compatible
Ableton Live Compatible
REAPER Compatible
Bitwig Studio Compatible
Blue Cat's PatchWork Compatible

Linux

Compatible applications

Bitwig Studio Compatible
REAPER Compatible
Ardour Compatible
Carla Plugin Host Compatible

Mobile

Mobile applications

Cubasis Compatible

Can .fxb files be converted?

Options for saving or exporting this file to another format

In many cases, a .fxb file can be converted by opening it in compatible software and using an option such as Save As, Export, or Convert. The available output formats depend on the file type and the application used.

  • Use the original software that created the file when possible.
  • Check whether the application supports exporting to common formats.
  • Be careful with online converters when working with private, business, or sensitive files.
  • If conversion fails, the file may be corrupted, incomplete, encrypted, or not actually a .fxb file.

Why can't I open a .fxb file?

Common reasons this file type may not open correctly

Wrong software

The file may require a specific program that supports the .fxb format.

Incorrect extension

The file extension may have been renamed manually, even though the actual file format is different.

Corrupted file

The file may be incomplete, damaged during download, or transferred incorrectly.

Outdated app

Your software may need to be updated before it can open newer versions of this file format.

Frequently Asked Questions

Common questions about .fxb files

To open a .fxb file, use software that supports this file format.

  • Steinberg Cubase
  • Ableton Live
  • FL Studio
  • PreSonus Studio One
  • REAPER

Open the file in compatible software and look for options such as Save As, Export, or Convert. If no export option is available, the file may require a specialized converter or the original application that created it.

  1. Verify that the file extension is correct.
  2. Install or update compatible software.
  3. Try another application that supports this format.
  4. Check whether the file is corrupted, incomplete, or encrypted.

A file extension alone does not guarantee whether a file is safe or unsafe. Only open files from trusted sources, scan unknown files before opening them, and be especially careful with executable, script, archive, and document files.

File safety tips

Use caution with unknown files

Only open files from trusted sources. Before opening a .fxb file, scan it with antivirus software, verify that the file extension is expected, and avoid running unknown executable, installer, macro-enabled document, or script files.