To format cells:
Number: Choose to format the cells as Currency (e.g., $5.00), Fixed (fixed decimal point; e.g., 0.00), Percent (e.g., 25 %), Fractions (e.g., 1/2), Scientific (scientific notation; e.g., 1E07) , Date (e.g., 1/30/99) or Time (e.g., 12:30 PM). Within each of these formats are further options; there are several choices for the currency format, date format, and so on.
When you are finished, click OK.
The formatting will be applied to your selected cell(s).
Formatting Cells in Advanced Mode
Font, Size: Changes the font type or size within the selected cells.