So you can import excel documents, but you can't export it as a excel document. You can export it as a numbers file for the mac or as a PDF file. And you can still upload it to iWork.com so anyone can view it.Works well with others.
Numbers on iPad lets you open spreadsheets created using iWork or Microsoft Office. So if someone emails you a Numbers or Excel file, you can easily import it into Numbers for iPad. To share your work, export your spreadsheet as a Numbers file for Mac or a PDF document, then email it to anyone. You can also upload it to iWork.com public beta so anyone on a Mac or PC can view your spreadsheet.
Just export it to your Mac, and then save as an Excel file on the Mac.So you can import excel documents, but you can't export it as a excel document.