@Override
    protected void setHeadCellStyle(CellWriteHandlerContext context) {
        if (stopProcessing(context) || headWriteCellStyle == null) {
            return;
        }
        WriteCellData<?> cellData = context.getFirstCellData();
        WriteCellStyle.merge(headWriteCellStyle, cellData.getOrCreateStyle());
    }
Use the same style for the row

@author Jiaju Zhuang
fastexcel-core/src/main/java/cn/idev/excel/write/style/HorizontalCellStyleStrategy.java