I have been very impressed by Documents To Go Premium by DataViz. I was able to import a rather complex Excel file which I use each year to work out our scores as the house athletics competition takes place. Competitors are listed in a column and colour coded according to their houses. Each event is listed in a row as shown in the following illustration:
This sheet has no names, but when populated, if a name appears in the left side of the sheet in an event a lookup formula matches that person with the name in the coloured column and credits him/her with relevant points and works out who is the victor/victrix ludorum. Scores are tallied and automatically appear on the ‘front page':
With battery life being a problem on a laptop, I am thinking of using the iPad instead this year. It may be that a separate wireless keypad will be needed.