I would like to leave my heavy notebook at home in the near future, and use my Samsung tablet instead for editing tables on my way to the office. I tried out several free spreadsheets (Kingsoft Office, Polaris Office, Documents To Go and such), but I had problems when opening some of my Excel files (formatting losses, shifted objects, missing charts,...), and the features were to limited. I need e.g. syntax highlighting, and, optimally, export to pdf and html - does anyone know a spreadsheet app with these features? I'm of course willing to pay for a good app.