Returns the minimum height required to fit the given text string using the given font.
textThe text string whose height will be calculated.
fontThe font that will be used to format the text.
desiredWidthThe width, in character units, of the cell or area into which the text will be inserted.
ReturnsThe minimum height, in character units, required to accommodate the given text string.
RemarksThe maximum height of any one row is 409 units, so if the height return is greater than 409, you must merge cells across multiple rows and set the height of each row to accommodate the total minimum height of the text.