Yup,
function "proper"
just add a column for each column that has data, add the function, then copy the formula down the whole sheet, then you will have the new data in proper case,
one important thing though, after you have completed the above, copy and paste special-- "values" (otherwise when you delete the "old or orginal data" you will be left with #ref errors.
(essentially you convert the data to proper case, then paste the values and eliminate the formulas that got you there)
Ron