Yes MS Word is a doc file. The file extension of MS Word file is .doc, .docx, .docm and many more.
The standard extension for most versions of Word has been .doc but in Word 2007 .docx is used.
Version 2003 - .doc , version 2007 - .docx
For MS Word 2003 & earlier versions: .doc For MS Word 2007 & next versions: .docx.
.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.
It depends upon you, what are you choosing to name your file?Note: Always try to give relevant name for your file because it helps you as well as other in understanding the nature of file.For example: If you have written an story then choose title of the story as a file name.
The problem you are having is not of conversion. Rather, it is of association. Saving a file as .doc in Wordpad is the same as saving it as .doc in MS Word. The problem is that your computer is set to open .doc files with MS Word rather than Wordpad. This is common, and I believe MS Word sets this association by itself when installed. Try right-clicking a .doc file and choosing the Open with... option. In the dialog that appears, choose Wordpad and tick the box that says "Always open with this application"
MS word creates files with the extension .doc Every file created also makes a "hidden file".
how to btd file to converd doc
Doc can be read in all MS Word versions but Docx can be only read in Word 2007 and later version unless you have installed some adds-on or compatibility packs in MS Word 2003;Docx file size is 75% less than the file size of doc;Docx files can easily convert into doc, .html, .rtf and other file formats, but a doc has to be converted in the aid of professional software;Docx is an opener file format that can be easily accessible;Docx is more powerful and versatile on features.
Choose Tools --> Options from the MS Word Menu, Click on "Save" Tab page. Now you can see, "Save Word file as" options, and against this there is a dropdown option which lists various formats a word file can be saved. Choose "Word document (*.doc)" option and click OK. Now when you save any file, you need not give filename with a .DOC extension. Hope this helps
Open it and save it as a DOC file. You can use word itself or abiword(free).
.docx is the default file format for documents from Word 2007 onward.