W3M file icon

W3M File Extension

Warcraft 3 Map Format
  • Developer
    Blizzard Entertainment
  • Category
  • Popularity
    3.6 (3 votes)

What is W3M file?

Full format name of files that use W3M extension is Warcraft 3 Map Format. Blizzard Entertainment defined the Warcraft 3 Map Format format standard. W3M file format is compatible with software that can be installed on Mac OS, Windows system platform. Files with W3M extension are categorized as Game Files files. The Game Files subset comprises 1509 various file formats. The most popular program for handling W3M files is Warcraft III: Reign of Chaos, but users can choose among 1 different programs that support this file format. Software named Warcraft III: Reign of Chaos was created by Blizzard Entertainment, Inc.. In order to find more detailed information on the software and W3M files, check the developer’s official website.

Programs which support W3M file extension

The list that follows enumerates programs compatible with W3M files, divided into 2 categories based on operating system on which they are available. W3M files can be encountered on all system platforms, including mobile, yet there is no guarantee each will properly support such files.

Programs that support W3M file

How to open file with W3M extension?

Problems with accessing W3M may be due to various reasons. What is important, all common issues related to files with W3M extension can be resolved by the users themselves. The process is quick and doesn’t involve an IT expert. The list below will guide you through the process of addressing the encountered problem.

Step 1. Get the Warcraft III: Reign of Chaos

Install software to open W3M file The main and most frequent cause precluding users form opening W3M files is that no program that can handle W3M files is installed on user’s system. The solution is straightforward, just download and install Warcraft III: Reign of Chaos. Above you will find a complete listing of programs that support W3M files, classified according to system platforms for which they are available. If you want to download Warcraft III: Reign of Chaos installer in the most secured manner, we suggest you visit Blizzard Entertainment, Inc. website and download from their official repositories.

Step 2. Check the version of Warcraft III: Reign of Chaos and update if needed

Update software that support file extension W3MIf the problems with opening W3M files still occur even after installing Warcraft III: Reign of Chaos, it is possible that you have an outdated version of the software. Check the developer’s website whether a newer version of Warcraft III: Reign of Chaos is available. Software developers may implement support for more modern file formats in updated versions of their products. This can be one of the causes why W3M files are not compatible with Warcraft III: Reign of Chaos. All of the file formats that were handled just fine by the previous versions of given program should be also possible to open using Warcraft III: Reign of Chaos.

Step 3. Set the default application to open W3M files to Warcraft III: Reign of Chaos

If you have the latest version of Warcraft III: Reign of Chaos installed and the problem persists, select it as the default program to be used to manage W3M on your device. The next step should pose no problems. The procedure is straightforward and largely system-independent

Associate software with W3M file on Windows

Selecting the first-choice application in Windows

  • Choose the Open with entry from the file menu accessed by right-mouse clicking on the W3M file
  • Select Choose another app → More apps
  • Finally select Look for another app on this PC, point to the folder where Warcraft III: Reign of Chaos is installed, check the Always use this app to open W3M files box and conform your selection by clicking OK button
Associate software with W3M file on Mac

Selecting the first-choice application in Mac OS

  • Right-click the W3M file and select Information
  • Find the Open with option – click the title if its hidden
  • Select Warcraft III: Reign of Chaos and click Change for all...
  • Finally, a This change will be applied to all files with W3M extension message should pop-up. Click Continue button in order to confirm your choice.

Step 4. Verify that the W3M is not faulty

Should the problem still occur after following steps 1-3, check if the W3M file is valid. Problems with opening the file may arise due to various reasons.

Check W3M file for viruses
1. Verify that the W3M in question is not infected with a computer virus

If the file is infected, the malware that resides in the W3M file hinders attempts to open it. Immediately scan the file using an antivirus tool or scan the whole system to ensure the whole system is safe. If the scanner detected that the W3M file is unsafe, proceed as instructed by the antivirus program to neutralize the threat.

2. Verify that the W3M file’s structure is intact

If you obtained the problematic W3M file from a third party, ask them to supply you with another copy. The file might have been copied erroneously and the data lost integrity, which precludes from accessing the file. If the W3M file has been downloaded from the internet only partially, try to redownload it.

3. Ensure that you have appropriate access rights

Sometimes in order to access files user need to have administrative privileges. Log out of your current account and log in to an account with sufficient access privileges. Then open the Warcraft 3 Map Format file.

4. Make sure that the system has sufficient resources to run Warcraft III: Reign of Chaos

If the systems has insufficient resources to open W3M files, try closing all currently running applications and try again.

5. Verify that your operating system and drivers are up to date

Regularly updated system, drivers, and programs keep your computer secure. This may also prevent problems with Warcraft 3 Map Format files. Outdated drivers or software may have caused the inability to use a peripheral device needed to handle W3M files.

Do you want to help?

If you have additional information about the W3M file, we will be grateful if you share it with our users. To do this, use the form here and send us your information on W3M file.

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