How to open W3I file extension?

The author of advice: Mr Brankiewicz

W3I files are incessantly popular. However, a file name containing W3I file extension is problematic for some of the users. They have problems with correct opening of a file with W3I extension. However, it should be remembered that W3I file extension can match one or more types of files. The most popular is Warcraft III Map Related but if there are others, you will find information concerning them below.

So, it is worth looking close at the problem concerning W3I files and search for its solution.

A list of programs supporting files types with W3I extension can be found below. Applications are sorted according to appropriate operational systems and their popularity.

  • Warcraft III Map Related

    .w3i file extension

    Category: Games Files

    OS Software
    Windows Warcraft III: Reign of Chaos Warcraft III: Reign of Chaos
    Warcraft III: The Frozen Throne Warcraft III: The Frozen Throne

How to check if a file we want to open is not infected by malware or viruses?

  • Download Malware/viruses removal tool from W3I files in the Windows system.
  • Click “Start scanning” and wait until the programme performs the scanning process on your computer.

What are the reasons of errors concerning W3I extension of files?

The problem that often causes damage concerning W3I extension are Windows system registry errors. That is why, in the first place it is recommended to:

  • Scan computer in order to identify, repair and open the W3I file
  • Check system registry from the angle of hidden errors
  • Repair file’s associations with programs in the system registry

If you are not sure if the above problems concern you, you should consider other frequent irregularities:

  • You do not have an appropriate application installed that supports W3I file extension
  • W3I file is corrupted
  • The application’s version necessary to open the file is not correct
  • The file is not assigned to an appropriate program

Solving problems with W3I files


If W3I file does not open, firstly, it is worth using files associations built in the Windows system with application that can support them. In order to do it, you should double-click a W3I file icon. A list of programs that probably support such a file will appear. It is enough to choose one of them so that Windows would open a given extension with it. Incorrect file’s association will result in Windows trying to open W3I file with a wrong program all the time even if there is an appropriate application supporting this format on a drive. In this case, it is necessary to perform the above mentioned registry scanning and associations’ repair.

If associations are correct and Windows still cannot open the file, most probably the computer does not have appropriate software supporting files with name containing W3I in their extension. The solution to this problem is very simple. You should buy or download a free (if they exist) application that will allow you to open, browse and edit W3I format. It is no risk because many paid programs have free test versions enabling to check their functionality.

Do you have extra information about a W3I file? [ Add information about a W3I file ]

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