Files with the MCW (MacWord) extension are documents created with Microsoft Word for Mac, the word processor included in Microsoft Office. They contain various elements such as text, images, tables, drawn objects and links to other local files and also feature a wide variety of text formatting options and styles.

The MCW file format was used as the default format by MacWord 1.5, 3.0, 4.0, 5.0 and 5.1 and was the Macintosh alternative of the DOC format used by Microsoft Word for Windows. MacWord 98 to 2004 share the same default format with WinWord 97 to 2003.

How to open MCW files
MCW files can be opened with MacWord versions 1.5, 3.0, 4.0, 5.0 and 5.1. Also, they can be converted to other, more recent formats using applications such as MyMorph, ABC Amber Text Converter or MacWord 98 to 2004.