public static CellDataTypeEnum buildFromCellType(String cellType) {
        if (StringUtils.isEmpty(cellType)) {
            return EMPTY;
        }
        return TYPE_ROUTING_MAP.get(cellType);
    }
Build data types

@param cellType
@return
fastexcel-core/src/main/java/cn/idev/excel/enums/CellDataTypeEnum.java