src/org/tiefaces/components/websheet/utility/WebSheetUtility.java
public static int widthUnits2Pixel(final int widthUnits) {
		int pixels = (widthUnits / EXCEL_COLUMN_WIDTH_FACTOR)
				* UNIT_OFFSET_LENGTH;
		int offsetWidthUnits = widthUnits % EXCEL_COLUMN_WIDTH_FACTOR;
		pixels += Math.round(offsetWidthUnits
				/ ((float) EXCEL_COLUMN_WIDTH_FACTOR / UNIT_OFFSET_LENGTH));
		return pixels;
	}
public static int widthUnits2Pixel(final int widthUnits) {
		int pixels = (widthUnits / EXCEL_COLUMN_WIDTH_FACTOR)
				* UNIT_OFFSET_LENGTH;
		int offsetWidthUnits = widthUnits % EXCEL_COLUMN_WIDTH_FACTOR;
		pixels += Math.round(offsetWidthUnits
				/ ((float) EXCEL_COLUMN_WIDTH_FACTOR / UNIT_OFFSET_LENGTH));
		return pixels;
	}
excel width units(units of 1/256th of a character width) to pixel units.

@param widthUnits
the width units
@return the int