To the OP - your Office 2003 works for you now and does everything that you need it to do? Then stay with it? Why change? If you want a free alternative then Open Office or the spin off Libre Office (developed by the same developers as Open Office when they left Open Office) will do all that any MS Office will do with the exception of Outlook which doesn't much exist any more anyway. It is fully compatible, will read and write new MS Office file formats and when MS decides to change them again, the open source suite will be updated to read and write those too. Just because MS stops supporting something does not mean you have to fall in with the sheep and buy whatever they want to sell you next. It still works and will keep working.