export default function readExcelContent(file: File): Promise<string>;
/**
 * @param jsonData raw JSON data to export
 * @param fields export fields (keys in the JSON objects)
 * @param fieldLabels custom the table header labels
 * @param formatMap custom the cell format functions
 * @param fileName file name for the exported Excel file
 */
interface FormatMap {
    [key: string]: (value: any, row?: any) => any;
}
interface ExportSheetConfig {
    sheetName: string;
    jsonData: any[];
    fields: string[];
    fieldLabels?: Record<string, string>;
    formatMap?: FormatMap;
}
interface ExportExcelOptions {
    sheets: ExportSheetConfig[];
    fileName: string;
}
export declare function exportJsonToExcel({ sheets, fileName }: ExportExcelOptions): void;
export {};
