office 2000 V office 2007, excel issue

[S]

I have a spreadsheet which I send to clients, I have done this on excel
(office) 2000 but now several of my clients have upgraded to office 2007 and
cannot read the file.
Help! Is there a way for them to convert it so they can have the spreadsheet
as a working document. Or me to convert it so they can open and read it.

thanks

 

[Bob I]

Perhaps send them this,
You receive an error message when you try to open a file type that was
blocked by your registry policy settings in Excel 2007 or in Excel 2003
http://support.microsoft.com/kb/922848/

 

[Joe H]

You might consider upgrading to 2007 and sending the link to the older folks
to d/l the free M$ viewer that allows old Excel to see new Excel