import type { SpreadsheetImportWorkbookMetadata } from './work-spreadsheet-import-worker-protocol';
export declare const PLAIN_XLSX_COLUMN_BITS = 14;
export declare const PLAIN_XLSX_COLUMN_MASK: number;
export declare const PLAIN_XLSX_CELL_CHUNK_SIZE = 4096;
export declare const PLAIN_XLSX_ROW_CHUNK_SIZE = 256;
export declare const PLAIN_XLSX_CELL_NUMBER = 0;
export declare const PLAIN_XLSX_CELL_BOOLEAN = 1;
export declare const PLAIN_XLSX_CELL_ERROR = 2;
export declare const PLAIN_XLSX_CELL_TEXT = 3;
export interface PlainXlsxPackageParts {
    contentTypes: string;
    packagePaths: readonly string[];
    rootRelationships: string;
    workbook: string;
    workbookRelationships: string;
}
export interface PlainXlsxWorkbookSheet {
    name: string;
    partPath: string;
}
export interface PlainXlsxWorkbookPlan {
    sheets: PlainXlsxWorkbookSheet[];
    workbook: SpreadsheetImportWorkbookMetadata;
}
export interface PlainXlsxCellChunk {
    coordinates: Uint32Array;
    kinds: Uint8Array;
    numericValues: Float64Array;
    startRow: number;
    textValues: string[];
}
export interface PlainXlsxWorksheetResult {
    columnCount: number;
    populatedCellCount: number;
    properties: Record<string, unknown>;
    rowCount: number;
}
export interface PlainXlsxRangeExtent {
    columnCount: number;
    rowCount: number;
}
/**
 * Authenticates the deliberately small OOXML subset handled by the fast
 * worksheet parser. Any package part or workbook construct outside this
 * closed set returns null and leaves SheetJS as the authority.
 */
export declare function createPlainXlsxWorkbookPlan(parts: PlainXlsxPackageParts): PlainXlsxWorkbookPlan | null;
/**
 * Parses primitive dense cells with a low-allocation cursor. Row chunks may be
 * emitted provisionally; callers must use them only when the final result is
 * non-null because a later unsupported element invalidates the whole sheet.
 */
export declare function streamPlainXlsxWorksheet(source: string, visit: (chunk: PlainXlsxCellChunk) => void, start?: (extent: PlainXlsxRangeExtent) => void): PlainXlsxWorksheetResult | null;
export declare function plainXlsxRangeExtent(reference: string): PlainXlsxRangeExtent | null;