Opening a ULT File

The ULT file type is primarily associated with UltraTracker Music Module.

ULTFile Extension ULT
File extension: ULT
File type:  UltraTracker Music Module files

What is a ULT file?

ULT files mostly belong to UltraTracker Music Module. Use our "Online ULT Text Viewer" below to analyze your ULT file and to see all text it contains.

How to open ULT files

You need a suitable software like UltraTracker Music Module to open a ULT file. You need a suitable software like UltraTracker Music Module to open a ULT file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your ULT file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a ULT file directly in the browser:. Just drag the file onto this browser window and drop it.

Online ULT Text Viewer

Choose your .ult file to analyze

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4 Steps to Open an Unknown .ULT File

Since .ULT files come from different programs, they aren't universally openable.

  1. Identify the Source: A retro audio enthusiast suggests an UltraTracker Music Module, while a game folder implies proprietary game data.
  2. Check the Header: Inspect the first bytes in a text editor or hex viewer:
    • "MAS_UTrack_V" means an UltraTracker module.
    • "PK" implies a ZIP archive.
    • Readable XML/JSON suggests a configuration file.
  3. Use the Original Software: The original program is usually required; try UltraTracker, VLC media player, or ask the sender if uncertain.
  4. Use this Webpage: Drag and drop the file into our viewer to detect the format, extract readable text/metadata, and preview when possible.

Technical Data for ULT File Extension


The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: Winamp.File, FileType: Winamp media file, AppName: BSPlayer
EXEFile: bsplay.exe

ProgramID: Winamp.File, FileType: Winamp media file, AppName: Winamp
EXEFile: Winamp.exe

ProgramID: Winamp.File, FileType: WINAMP.FILE

ProgramID: Winamp3.File, FileType: Winamp media file, AppName: Winamp3
EXEFile: studio.exe

ProgramID: Winamp3.File, FileType: Winamp media file, AppName: Winamp3
EXEFile: winamp3.exe

ProgramID: ModPlugPlayer
EXEFile: %ProgramFiles%\ModPlug\Player\MODPLUG.EXE %1

ProgramID: Winamp.File
EXEFile: %ProgramFiles%\JetAudio\JetAudio.exe %1

ProgramID: Winamp.File
EXEFile: %ProgramFiles%\Netscape\Communicator\Winamp\winamp.exe %1

ProgramID: Winamp.File
EXEFile: %ProgramFiles%\Winamp\Winamp.exe %1

ProgramID: Winamp3.File
EXEFile: %ProgramFiles%\Winamp3\Studio.exe %1

ProgramID: Winamp3.File
EXEFile: %ProgramFiles%\Winamp3\winamp3.exe %1

ProgramID: Winamp.File
EXEFile: %ProgramFiles%\Winamp5.08\Winamp.exe %1

ProgramID: Winamp.File
EXEFile: %ProgramFiles%\Winamp5\Winamp.exe %1

ProgramID: ModPlugPlayer
EXEFile: %ProgramFiles%\modplugp\MODPLUG.EXE %1

ProgramID: ULTFile
EXEFile: %ProgramFiles%\JetAudio\JetAudio.exe %1

ProgramID: ModPlugPlayer
EXEFile: %ProgramFiles%\MODPLUG.EXE

ProgramID: Winamp.File
EXEFile: %ProgramFiles%\K-Lite Codec Pack\Media Player Classic\mplayerc.exe


a ult UltraTracker Music Module file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with ULT files

  • Associate the ULT file extension with the correct application.
  • Update your software that should actually open UltraTracker Music Module files. Because only the current version supports the latest ULT file format. Search, therefore, e.g. on the manufacturer website after an available UltraTracker Music Module update.
  • To make sure that your ULT file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
  • Click here to open your .ULT file online - secure, fast, and no downloads needed.
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