Free Spreadsheet Free Spreadsheet on the App Store

This isn't Excel, but do you really want to try to use Excel on your phone?

Designed from the ground up for iOS, Free Spreadsheet gives you the number crunching power you need, without making you jump through hoops to use it. Capabilities include formula dragging, limited graphing, and import/export of csv files over WiFi.

User Guide

Download it on the iOS App Store