What is the extension of a word file

1.	What is the extension of a word file
Answer» A filename extension, file extension or file type is an identifier specified as a suffix to the name of a computer file. The extension indicates a characteristic of the file contents or its intended use.DOCXDOCX is part of Microsoft Office Open XML specification (also known as OOXML or OpenXML) and was introduced with Office 2007. DOCX is a zipped, XML-based file format. Microsoft Word 2007 and later use DOCX as the default file format when creating a new document. Support for loading and saving legacy DOC files is also included.DOCDOC is the default format used with Office 97-2003. DOC is a Microsoft proprietary Binary Interchange File Format. Microsoft Word 97-2003 uses DOC as the default file format when creating a new document. Support for loading and saving DOCX files can be added using an add-in. .doc / .docx

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