Version 2003 - .doc , version 2007 - .docx
.doc for earlier version of MS Word (MS Word 2000, 2002, 2003) before MS Word 2007 & .docx for MS Word 2007 & 2010.
*.doc (for Word 97-2003) or *.docx (for Word 2007). Of course you can save and open many other types of files, but those are the standard MS Word file types.
MS Word 2007 uses a .docx extension by default.
For MS Word 2003 & earlier versions: .doc For MS Word 2007 & next versions: .docx.
Yes MS Word is a doc file. The file extension of MS Word file is .doc, .docx, .docm and many more.
There is no specific file extension for MS-DOS. Files can have any 3 character extension in MS-DOS.
.png is the default extension of an Ms-paint file
A file name extension "associates" that file to the program or type of program that created it. For examples:.bmp = Paint.jpg = Photoshop or other graphics program.txt = Notepad.doc = MS Word 2003,docx = MS Word newer versions
.rtf is the extension of ms paint
The standard extension for most versions of Word has been .doc but in Word 2007 .docx is used.
.doc just say hey I'm a old word processing file extension and this is how I need to be opened, so you can read me.
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.docx
.doc