Is it your own document or one someone else has created?
It may well be that the versions are widely different for example trying to use a file done in Excel for WindowsXP would struggle if opened in Windows 95 or 98.

You will have to ask the originator to save it as a different Excel version.  Do this using Save As option, and setting the Save As Type to the version of XL that you are running.

I'm assuming when I say this that you don't play around installing and unistalling different versions of Windows - this would also cause a problem.