How to Update an Older Word Document in Word 2013
Click the File tab and choose Export.
This will prepare to update the document.
Click the Change File Type option.
Your options will be magically revealed.
Choose Document from the list of Document File Types.
It’s the first item on the list.
Click the Save As button.
This button is found at the bottom of the screen. (You may have to scroll down to see it.)
Click the Save button in the Save As dialog box to update the document. Then click OK.
Or you can work the controls in the Save As dialog box to rename the document or save it in a different location.
The file is updated.