You could download the compatibility pack, which allows you to open Office
2007 files in earlier versions of Office (but you lose any Office 2007
features).
I would think that this trial version would not overwrite an earlier
installation, but you'd better pay attention while installing to make sure
it doesn't.
- Jon
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Jon Peltier, Microsoft Excel MVP
Tutorials and Custom Solutions
Peltier Technical Services, Inc. -
http://PeltierTech.com
_______
If you have the upgrade, your license does not allow you to keep both
versions. If you have a complete install version of 2007, then simply
install it to a different directory and choose the option not to remove
the
previous versions of Office.
What about the free download from microsoft.com?
I wanted to look at an MS Office Template that (surprise!) "required"
Excel 2007. I have Excel 2003. When I failed the version
verification, it "offered" to install a free version of Excel 2007. I
balked because I was not sure what that might do to my Excel 2003.
(FYI, I asked someone to save the template in Excel 2003 format.
There was nothing special in the template. Just MS's way of coercing
people to move to Excel 2007, I guess.)