Hello,

My users are on excel 2003 and I use the Microsoft Compatibility pack to open the xlsx.
I have download it (the latest version) at :
http://www.microsoft.com/download/en/details.aspx?id=3

For months, at the company, we received xlsx files that excel couldn't open. But the trouble appears just for some xlsx files. Others xlsx files works good with the compatibility pack.

I think, but it's just an opinion without argument, that the files that i can't open are create with excel 2010. I can't verify because I don't know the people who send this kind of files to my users.

Did you have this kind of trouble ? Have you got a solution ?