All about 4W Files

The 4W file type is primarily associated with Four Winds Mah Jong.

4W	File extension: 4W
	File type:	Saved Layout/Game

What is a 4W file?

4W files mostly belong to Four Winds Mah Jong by Lagarto. Use our "Online 4W Text Viewer" below to analyze your 4W file and to see all text it contains.

How to open 4W files

You need a suitable software like Four Winds Mah Jong to open a 4W file. You need a suitable software like Four Winds Mah Jong from Lagarto to open a 4W 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 4W file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a 4W file directly in the browser:. Just drag the file onto this browser window and drop it.

Online 4W Text Viewer

Choose your .4w file to analyze

or drag and drop it here

Online File Viewer

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.4W File Not Opening? How to Fix It:

Because .4W files can originate from different programs, they aren't universally openable.

Identify the Source: If received from a Mahjong player, it's likely a Four Winds Mah Jong saved game. Otherwise, it may be a proprietary data file.
Check the Header: Open the file in a text editor or hex viewer to inspect the first bytes:
- Readable text or XML suggests a configuration file.
- "PK" indicates a zipped archive.
- Unreadable binary usually means a compiled game format.
Use the Original Software: The original program is usually required; try Lagarto's Four Winds Mah Jong, or ask the sender what software they used.
Use this Webpage: Drag and drop your .4W file here to detect its format, extract metadata, and preview contents.

Technical Data for 4W File Extension

File classification:

Game

Related files:

4w7, dsi, cly, gly

a 4w Saved Layout/Game is a special file format by Lagarto and should only be edited and saved with the appropriate software.

How to solve problems with 4W files

Associate the 4W file extension with the correct application.
Update your software that should actually open saved layout/games. Because only the current version supports the latest 4W file format. Search, therefore, e.g. on the Lagarto manufacturer website after an available Four Winds Mah Jong update.
To make sure that your 4W file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .4W file online - secure, fast, and no downloads needed.