Research the differences in file formats between MS Office 2003 and MS Office 2007.
Explain how file signatures and metadata can be used to determine which versions of MS Office applications (e.g. Word, Excel, Power Point) were used to create documents, spreadsheets, presentations, etc.
In your response you must answer the following questions:
1. What is the major difference in file formats between MS Office 2003 and MS Office 2007 generated files?
2. What are the specific differences in file signatures between MS Office 2003 and MS Office 2007?