The Same Things / different Things Between OpenOffice – Microsoft Office

Article	OpenOffice.org	Microsoft Office
Interface	Similar	Similar
Easily to use	Yes	Yes (or No if users are always use the older version like 2003)
Copyright	Free to use	Can try for 30 days. If you want to use you must buy them.
Extension of  file saving	Same as the another (Support ODF extension)	Same as the another
Computer Specification	Medium Performance Computer can use it (Must have Java Runtime Environment to use)	Medium Performance Computer can use it. But Microsoft Office 2007 aren't recommended for low performance computer
Manufacture	Sun Microsystems Inc	Microsoft
About PDF Files	Can convert files to PDF format by itself	Must use program to convert to PDF
Compatible	Can use it in Windows, Linux, Mac(Must use X11)	Can use in Windows, Mac
Files Opening	Can't open files from microsoft office correctly	Can open files correctly
Files size	Native format is small file size	Microsoft Office's files are bigger than OpenOffice