File properties, such as author name, subject, and keywords, help you manage and identify your documents. LibreOffice also tracks file statistics, including the number of words and the number of pages in a document, and automatically adds the statistics as part of the file property.
You can view file properties for the current document or for a document in the Windows File Open dialog .
To view file properties for the current document:
Choose File - Properties.
To view file properties for a document listed in the Windows File Open dialog
Choose File - Open.
Select a file in the list.
Right-click and choose Properties.