Cause: The document was saved with compatibility mode turned on. doc file name extension or save a document in the Word 97-2004 Document (.doc) format. To use compatibility mode, you can either open a document that has a. If you share a document with someone who uses an earlier version of Word, consider using compatibility mode. Compatibility mode turns off new features that can cause incompatibility with earlier versions. In some cases, part of a document that is created by using new features can't be edited in an earlier version of Word. Some new features in Word can cause a document to look different when it is viewed by using an earlier version of Word. Cause: The document was saved in the Word 97-2004 Document (.doc) format. If you are using Word for Mac 2011, make sure that the Maintain compatibility with Word 98-2004 check box is clear. On the Format pop-up menu, click Word Document (.docx). This is because other people may be unable to edit parts of a document that you create by using new or improved features in Word for Mac 2011 and Word 2016 for Mac. If you plan to share the document with people who use an earlier version of Word, you might want to work in compatibility mode and leave the document in its current file format.

Important: The following procedure changes the file format of the document.

Winfax pro in compatibility mode