Documents now contain Meta-Data. 'Meta-Data' or 'data about data', found in documents can show who created a document, when and perhaps even where. It can also contain information about changes made to the document and more.
Just like Documents, Spreadsheets contain Meta-Data. 'Meta-Data' or 'data about data', found in spread sheets can show who created the spreadsheet, when and perhaps even where. It can also contain information about changes made to the document and more