Document Properties
You can
use the Document Properties to indicate who created this file
and when it was reviewed. The Document Properties include: author,
subject, keywords, categories, status and comments .
Try it: Edit the Properties
Go to
Office ->Prepare.
Select:
Properties.

What Do You See? The Document Properties
should be displayed at the top of the workbook. You can edit the
fields if you wish.
Close the Properties with the "x" on the far right
side of this header.