/**
 * Data Export Utilities for NA-Kit UI
 *
 * Provides CSV and Excel (XLSX-like) export for Table and Data Grid data.
 * No external dependencies — pure browser APIs.
 *
 * @module data-export
 */
export interface ExportColumn {
    /** Column key/field name */
    key: string;
    /** Display header */
    header: string;
    /** Custom formatter for cell values */
    formatter?: (value: unknown) => string;
    /** Whether to include this column in export */
    include?: boolean;
    /** Column width (for Excel export) */
    width?: number;
}
export interface ExportOptions {
    /** Filename (without extension) */
    filename?: string;
    /** Columns to export */
    columns?: ExportColumn[];
    /** Whether to include headers */
    includeHeaders?: boolean;
    /** Sheet name (for Excel) */
    sheetName?: string;
    /** CSV delimiter */
    delimiter?: string;
    /** Whether to add BOM for UTF-8 (helps Excel recognize encoding) */
    bom?: boolean;
    /** Custom title/header rows */
    title?: string;
    /** Include row numbers */
    rowNumbers?: boolean;
    /** Date format string */
    dateFormat?: string;
}
/**
 * Export data to CSV format
 */
export declare function exportToCSV(data: Record<string, unknown>[], options?: ExportOptions): string;
/**
 * Download data as a CSV file
 */
export declare function downloadCSV(data: Record<string, unknown>[], options?: ExportOptions): void;
/**
 * Export data to Excel-compatible XML Spreadsheet format
 * This uses the SpreadsheetML format which Excel, Google Sheets, and LibreOffice support.
 * No external dependencies needed.
 */
export declare function exportToExcel(data: Record<string, unknown>[], options?: ExportOptions): string;
/**
 * Download data as an Excel file
 */
export declare function downloadExcel(data: Record<string, unknown>[], options?: ExportOptions): void;
/**
 * Download data as JSON
 */
export declare function downloadJSON(data: Record<string, unknown>[], options?: Pick<ExportOptions, 'filename'>): void;
/**
 * Copy table data to clipboard in tab-separated format (paste-able into spreadsheets)
 */
export declare function copyToClipboard(data: Record<string, unknown>[], options?: ExportOptions): Promise<void>;
/**
 * Open a print-friendly view of the data
 */
export declare function printData(data: Record<string, unknown>[], options?: ExportOptions & {
    styles?: string;
}): void;
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