When using Excel text colors should really be limited to two colors black text is always in style. Using the banding function of alternating colors increases readability. The best way to display titles is by using the merge and center command located in the Excel ribbon. Using the wrap text function allows for a lengthy amount of text to be formatted to the cell to increase readability.
As for dates Excel recognizes them in different styles and has many formats for display.
When displaying numbers excel can format the numbers to have the dollar sign $ up to including decimal points for displaying cents. Excel has several formats for numbers ranging from general, number, currency, accounting, date, time, percentage, fractions, scientific, text, special, even custom if you feel that the aforementioned list does not suit your needs.
