The mobile version of Excel will let you take a screen shot of a table and import it as a worksheet. No need to retype it! Will be available first for Android, later for iPhone.
Between the Sheets — Excel podcast episode 31: Excel’s secret DATEDIF function
A quick and simple way of finding the number of days, months or years between two dates is Excel’s secret DATEDIF function. When you type it in a worksheet, there’s no popup syntax help to indicate the function exists.