/** A1-style cell-reference helpers, inlined so streaming code stays free of `xlsx`. */
export declare function decodeCol(letter: string): number;
export declare function encodeCol(index: number): string;
/** Parse "AB12" → { col: 27, row: 11 } (0-indexed). */
export declare function parseCellRef(ref: string): {
    col: number;
    row: number;
};
//# sourceMappingURL=cellRef.d.ts.map