Question

What is the extension of Ms-Word file?

Answer 1

.doc – Legacy Word document; Microsoft Office refers to them as "Microsoft Word 97 - 2003 Document"
.dot – Legacy Word templates; officially designated "Microsoft Word 97 - 2003 Template"
OOXML
Office Open XML (OOXML) format was introduced with Microsoft Office 2007 and became the default format of Microsoft Word ever since. Pertaining file extensions include:
.docx – Word document
.docm – Word macro-enabled document; same as docx, but may contain macros and
scripts
.dotx – Word template
.dotm – Word macro-enabled template; same as dotx, but may contain macros and scripts
.docb – Word binary document introduced in Microsoft Office 2007

Answer 2

.doc Is the Answer...........................