Opening a ULW File

The ULW file type is primarily associated with ULAW - Sun/NeXT.

ULW	File extension: ULW
	File type:	ULAW - Sun/NeXT files

What is a ULW file?

ULW files mostly belong to ULAW - Sun/NeXT. Use our "Online ULW Text Viewer" below to analyze your ULW file and to see all text it contains.

How can I open a ULW file?

You need a suitable software like ULAW - Sun/NeXT to open a ULW file. You need a suitable software like ULAW - Sun/NeXT to open a ULW 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 ULW file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a ULW file directly in the browser:. Just drag the file onto this browser window and drop it.

Online ULW Text Viewer

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4 Steps to Open an Unknown .ULW File

ULW files can originate from various systems and aren't universally openable by default players.

Identify the Source: These files often come from legacy telephony systems, Sun/NeXT workstations, or raw audio dumps, suggesting u-Law encoded audio.
Check the Header: Open the file in a hex editor to inspect its first bytes.
- Seeing .snd (2E 73 6E 64) indicates a standard Sun/NeXT audio file.
- Random binary data without a clear header often implies raw u-Law audio.
Use the Original Software: The original program is usually required; try audio editors like Audacity, SoX, or GoldWave, or ask the sender if uncertain.
Use this Webpage: Drag and drop your file into our viewer to detect the format, extract readable text/metadata, and preview when possible.

Technical Data for ULW 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: QuickTime.ulw, FileType: AU Audio, AppName: QuickTime Player
EXEFile: QuickTimePlayer.exe

ProgramID: QuickTime.ulw, FileType: AU Audio, AppName: QuickTime Player Application
EXEFile: QuickTimePlayer.exe

ProgramID: ACDSee 7.0.ulw
EXEFile: %ProgramFiles%\ACD Systems\ACDSee\7.0\ACDSee7.exe %1

ProgramID: QuickTime.ulw
EXEFile: %ProgramFiles%\QUICKT~1\QuickTimePlayer.exe %1

ProgramID: QuickTime.ulw
EXEFile: C:\QUICKT~1\QuickTimePlayer.exe %1

ProgramID: QuickTime.ulw
EXEFile: %ProgramFiles%\QuickTime\QuickTimePlayer.exe %1

ProgramID: ACDSee 8.0.ulw
EXEFile: %ProgramFiles%\ACD Systems\ACDSee\8.0\ACDSee8.exe

ProgramID: ACDSee Pro.ulw
EXEFile: %ProgramFiles%\ACD Systems\ACDSee\8.0.Pro\ACDSee8Pro.exe

ProgramID: ACDSee.ulw
EXEFile: %ProgramFiles%\ACD Systems\ACDSee\5.0\ACDSee5.exe

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a ulw ULAW - Sun/NeXT file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with ULW files

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