In Pictures: The must-have iPad office apps, round...
Best spreadsheet editor (tie): Office2HD
Office2HD's spreadsheet module is very similar to Quickoffice's, lacking only pane freezing but boasting extensive support of cloud storage services. For many users, it's a better option than Quickoffice due to the cloud support.
Compatibility: iPad (iPhone version: $5.99)
In Pictures: The must-have iPad office apps, round 7