What is the default “File Name” when you save a document in MS Word?

And what is the file extension for MS Word files in for 2007?What is the default “File Name” when you save a document in MS Word?
The first time for a user session it will use Document1, followed by Document2, etc. The default file extension (and type) is .docx, although this can be changed with a simple Word option.



Hope that helps.