I need to create and send an excel file to someone who has a PC and am unsure whether or not to use Apple's or Microsoft's version. It's for business. When I open Microsoft excel on my mac, it opens up with 2 pages like a copy book whereas Numbers opens up with one giant page. Can I change the layout of Microsoft excel so that it looks like one big document? I tried but it's not the same. Is Numbers completely compatible with excel on a PC cuz if it is I'll just use that. The reason why I'm questioning is because when I send the file to they guy who has the PC, he'll be using formulas etc that I know the Mac version of excel don't have so I'm not sure if it'll be compatible when he sends the file back to me.