import { HttpClient } from "@angular/common/http";
import { XlsxExportOptions, XlsxConfig } from "./interface";
export declare class XlsxService {
    private config;
    private http;
    constructor(config: XlsxConfig, http: HttpClient);
    private init;
    private read;
    /**
     * 导入Excel并输出JSON，支持 `<input type="file">`、URL 形式
     * @param rABS 加载数据方式 `readAsBinaryString` （默认） 或 `readAsArrayBuffer`，[更多细节](http://t.cn/R3n63A0)
     */
    import(fileOrUrl: File | string, rABS?: "readAsBinaryString" | "readAsArrayBuffer"): Promise<{
        [key: string]: any[][];
    }>;
    /** 导出 */
    export(options: XlsxExportOptions): Promise<void>;
}