import type { CellObject, ParsingOptions, WorkBook } from 'xlsx';
export declare const SPREADSHEET_IMPORT_ROW_CHUNK_SIZE = 512;
export declare const SPREADSHEET_IMPORT_CELL_CHUNK_SIZE = 8192;
export interface SpreadsheetImportWorkerRequest {
    bytes: ArrayBuffer;
    kind: 'parse';
    options: ParsingOptions;
}
export type SpreadsheetImportWorkbookMetadata = Omit<WorkBook, 'Sheets'>;
export type SpreadsheetImportDenseRow = Array<CellObject | undefined>;
export type SpreadsheetImportWorkerResponse = {
    kind: 'workbook';
    workbook: SpreadsheetImportWorkbookMetadata;
} | {
    dense: boolean;
    kind: 'worksheet';
    name: string;
    properties: Record<string, unknown>;
} | {
    kind: 'rows';
    name: string;
    rows: Array<SpreadsheetImportDenseRow | undefined>;
    startRow: number;
} | {
    cells: Array<[address: string, cell: CellObject]>;
    kind: 'cells';
    name: string;
} | {
    kind: 'success';
} | {
    kind: 'failure';
};