Tips to open W3U file

Can't open the W3U file? You are not the only one. Thousands of users face similar problems every day. Below you will find tips on how to open W3U files as well as a list of programs that support W3U files.

W3U file extension

File Name Warcraft 3 Custom Units
File Developer Blizzard Entertainment, Inc.
File Category Game Files

The W3U file is supported on 1 operating systems. Depending on your operating system, you may need different software to handle the W3U files. Below is a summary of the number of programs that support and open the W3U file on each system platform.

Operating systems
  • 2
  • 0
  • 0
  • 0
  • 0
  • 0

What is W3U file?

The file in the W3U format belongs to the Game Files category. It was designed by Blizzard Entertainment, Inc.. Game Files consists of 1509 similar files. Warcraft 3 Custom Units is most often found on 1 operating systems. The file will work on Windows systems, unfortunately not on others. It is recommended to use Warcraft III: Reign of Chaos to handle this file. This is a program created by Blizzard Entertainment, Inc.. There are also 1 alternative programs to handle the W3U file. Warcraft III: The Frozen Throne will apply when it is not possible to use Warcraft III: Reign of Chaos.

How to open W3U file?

The main problem with Warcraft 3 Custom Units is that the W3U file is incorrectly associated with programs. This causes the file W3U to open by system applications not designed for this purpose, or to display a message that there is no associated program. This problem can be easily remedied.

The first thing you should do is just "doubleclick" on the W3U file icon you want to open. If the operating system has an appropriate application to support it and there is also an association between the file and the program, the file should be opened.

Step 1. Install Warcraft III: Reign of Chaos

The first step is to check if the computer has the Warcraft III: Reign of Chaos program installed. This can be achieved by typing Warcraft III: Reign of Chaos into the operating system search engine. If it is not, installation may solve the problem, as most applications create file associations during installation. Below you will find a list of applications that support W3U files.

Step 2. Create association of Warcraft III: Reign of Chaos with W3U files

However, it may happen that the application itself does not cause the W3U file to open in the Warcraft III: Reign of Chaos application, but you can set it manually. The association can be created using the drop-down list available by right-clicking on the file and selecting Properties. The displayed window will contain information about the program that supports this type of file. Changes can be made using the "Change" button. The program should be visible in the window, otherwise it should be selected manually using the "Browse" button and the program installation directory should be indicated. The "always use the selected program ..." field will set the Warcraft III: Reign of Chaos application as the default for handling the W3U file.

Step 3. Update Warcraft III: Reign of Chaos to the latest version

The fault may also lie with the Warcraft III: Reign of Chaos program, it is possible that Warcraft 3 Custom Units requires a newer version of the program. This can be done using the application (if it provides such options) or from the Blizzard Entertainment, Inc. website and install the latest version.

Step 4. Check for the following problems with the W3U file

The problem may also be with the file itself if the above steps don't work. The most common file problems are:

Very often, the file may be size 0 or incomplete. This is most often caused by a problem while downloading the W3U file. Downloading the file again should fix the problem.
The most common cause here is computer viruses. Perform a virus scan using available and up-to-date anti-virus software. Some antivirus vendors also provide free online scanners. However, it is important to scan the entire system, not only the file W3U or the program directory. Sometimes virus-infected W3U files cannot be recovered, so make a backup in advance.
A typical compatibility error - the program does not support the older version of the W3U file. On their websites, developers usually offer free solutions to such problems, e.g. in the form of a conversion program or an older version of the program.
There can be many reasons for this. The repair method must be adapted to the type of file and damage. Some programs offer the ability to automatically repair W3U file corruption. The easiest way to restore the file is from a backup or by contacting Blizzard Entertainment, Inc., but this one can be expensive. Not all damage can be reversed.
The program can also signal the fact of encryption. The encrypted W3U files cannot be played on other computers than the one on which they were encrypted, they must be decrypted before using on another device.
Some operating systems do not allow file operations in certain locations, eg in system directories or directly on the system drive. While there is usually no problem reading such a file, it may not be possible to save it. If possible, you can try to move the W3U file to another location.
This can happen on a file that does not support multiple access. You may find that another program you are using is preventing you from working with the file. Running programs (including those in the background) should be verified. If the error persists after closing other programs, wait for a while. Some anti-virus or backup software may occupy the W3U file for a certain period of time. If nothing helps, please reset the device.