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What is the .MCW File Extension?

.MCW File Extension Description:

The MCW file extension is similar to the DOC file extension of Microsoft. It identifies the word document made in the Apple platform. However, there is also a word processor application made by Microsoft Corporation that uses the MCW file extension. However, this application is only used for Apple computers.

For the Apple Computer-made word processor, the MCW file extension works to identify files made in the application MacWrite. This is among the first applications released by the Apple Macintosh in 1984. This word processor is actually the first publicly available WYSIWYG applications in the market. Though it was too early for computer use at that time, the MacWrite already features various fonts and styles.

When the user creates documents using the MacWrite, all his documents or files will have the MCW file extension. With that identifier, the computer as a file capable to be opened using the MacWrite application will only read it. However, a certain Microsoft Corporation-authored application can also read this kind of file format and can also make files with the MCW file extension. This is called the Microsoft Office for Mac.

The latest version of this application suite is the Microsoft Office 2008 for Mac, which is the version of the Microsoft Office 2007 for Windows. This suite is just like the version for Microsoft Windows. It also offers different core programs like the Entourage, PowerPoint, Excel, and Word. These applications were also offered in the older Microsoft Office 2004 for Mac.

To be highly efficient with Apple computers, these applications are programmed to work just like the Microsoft Office, but some changes are made to suit the Macintosh platform. That is why the Word application for this has the MCW file extension instead of the DOC file extension. Through this, the word file can be read even by the MacWrite application.

Author: Apple, Inc., Microsoft Corporation
Author URL:,
Related Applications: MacWrite, Microsoft Word for Mac
Common Path: C:/ Winnt/ profiles/ username/ desktop/


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Do you have errors with .MCW files?

The Usual Reason for .MCW files Errors to Occur:

A common and likely cause for .MCW files errors is damage in the Windows registry - fixing is needed to protect against additional damage in other applications and/or devices. While the errors remain your PC remains at risk for likely blue screen errors, device failure and fatal crashes.

What are the Symptoms of .MCW files Errors?

.MCW files error symptoms include software crashes, system shut down or start up troubles, slow personal computer operation, laggy behaviour, screen freeze, internal speaker beeps, problems loading documents as well as issues during application installs.

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