Ohmigod, the tabs work for the different worksheets within the workbook.Email the document (use the extension ".doc" format for Word and ".xls" for Excel) to your iPhone. Double tap the file icon to view the text/spreadsheet.
Someone on this forum suggested moving your email to the "sent" folder to keep the document on your iPhone (and avoid having to download it from the server each time).
I use www.readdle.com - it allows you to upload any document (.xls, .doc, .pdf, etc) and then view it through Safari. I've found it very useful, one nice thing is that even if you do a restore on your phone, the documents are online so you lose nothing.so any new reports one word documents, excel,spreadsheet etc...
I don't know if I like the idea that my documents are sitting on some else's server. It doesn't sound safe.