Hopefully the title says it. I have some .numbers files that I need a friend to look at on her pc with Excel 2003 SP3, but it's not working for her. I have changed the extension to .xls but it's no good, as when she tries to open them they are all gobbledegook. Here's a snapshot of the various files I have, but notice how the icons for each is different, or rather that there are two distinct designs? Some of them DO open in Excel, but some do not. Any help on why this is happening is appreciated.