They can, you need to get the MSOffice compatibility pack from Microsoft though.
http://office.microsoft.com/en-us/word/HA100444731033.aspx
Microsoft moved up to a newer format to provide more flexibility to documents. An alternative to the fix is to save your files from 2007 to the 2003 format in the drop down box at the bottom of the save screen.
Yes, you can use files saved on Microsoft PowerPoint 2003 in Microsoft PowerPoint 2007 (but not the other way around).
You can convert Microsoft Powerpoint 2007 files into 2003 files by clicking the Office Button, Then mouse over save as. A new menu should pop up. Click the button that says "PowerPoint 97-2003 Presentation. Type a name and save where you wish.
Earlier it was not possible but now Microsoft has released a update to open 2007 files using office 2003. More on this at http://new-digital-world.blogspot.com/2008/03/office-2007-files-to-office-2003.html
no
Microsoft Office Groove 2007 is Internet software for making direct connections with the people who are important to you. With Office Groove 2007, you can bring together team members from both inside and outside your company
microsoft 2007 is easy to than microsoft 2003..thats why the microsoft has no virus
Purchase an upgrade version of Office 2007 and install. It will replace the Office 2003 program files with the appropriate Office 2007 files. Your data files will remain unaffected. You can use all of your Office 2003 data files with Office 2007 (but Office 2007 files may not be backward compatible for Office 2003).
The Microsoft Publisher 2007 is more advanced than the 2003.
Well you will need to uninstall Microsoft office 2007 and your files will go in to a text document than install 2003 and your files will go in to Microsoft office 2003. If you do not know how to uninstall 2007 here is how. You click the start button than you click control panel and it will go to a window showing a lot of things you can change. And one of the selections says Add or Remove programs and click on that and a window will pop up and shows stuff you have installed and look for Microsoft office 2007 and uninstall it and it will uninstall and then install Microsoft office 2003 and then there you go! THIS STUFF ONLY WORKS WITH WINDOWS XP AND MAYBE VISTA
.ppt for versions up to 2003 and .pptx from version 2007 onwards.
How to save files.
open Microsoft Office word 2007 always re-install Microsoft office 2007