Missing .docx option

I am not getting the .docx option in Save As in Word for Mac 2011 with Mavericks. Anyone have any die what that is missing and how to restore it?

aicul said:

Just a basic comment, if the file is already in .DOCX format, then it may not propose that option in SAVE AS...

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Problem solved. I was trying to save a version of a document I had saved as .doc in .docx, Discovered I needed to copy the doc to a new document blank, then save as .docx.

Thanks for your response. All help is welcome.