import type { WorkSheet } from 'xlsx-js-style';
export declare class ExcelUtil {
    private static height;
    private static dataRow;
    private static widthAuto;
    private static lstRange;
    private static lstColInfo;
    private static lstRowInfo;
    private static freezeInfo;
    private static lstValue;
    private static lstCellStyle;
    private static readonly MOVE;
    static toMap(excelData: string | ArrayBuffer, sheetName: string | number, headerRow?: number, headerCol?: number, headerLastCol?: number, dataRow?: number, dataLastRow?: number, extraData?: Map<string, string>): Array<Map<string, string>>;
    private static getSheetData;
    private static getSheetHeader;
    private static getSheetBody;
    private static getMergedCellValue;
    private static init;
    private static initCellStyle;
    private static chooseCellStyle;
    static writeCellData(rowIndex: number, colIndex: number, cellData: string): void;
    static writeHeader(lstHeader: Array<Array<string>>, widthCol?: number, dataCol?: number, lstExcludeRow?: Array<number>): void;
    private static checkMergeRange;
    private static merge;
    private static getWidthColByAuto;
    private static getWidthCol;
    private static isChineseChar;
    private static saveHeaderCellValue;
    private static saveCellValue;
    private static getFlagArray;
    private static getCellStyle;
    static getDataSheet(): WorkSheet;
    static write(lstData: Array<Record<string, any>>, fileName: string): void;
}