/** A parsed A1-notation cell range. Rows/columns are 0-based and normalized so `start <= end`. */
export interface ParsedCellRange{sheet?:string;startRow:number;startCol:number;endRow:number;endCol:number;}
/**
* Parses an A1-notation cell or cell-range reference, tolerating an optional `Sheet name!` prefix
* (quoted with single quotes when the name contains a space), `$` absolute markers, and lowercase
* column letters. Whole-row (`3:7`) and whole-column (`A:A`) references are currently unsupported
* and return `null` -- a bare `parseCellRef()` failure on either half of the range means neither
* looks like a real single-cell reference.
*/
export declare function parseCellRange(input:string):ParsedCellRange|null;
/**
* Inverse of `parseCellRange()` -- builds an A1-notation string for a `LyraAnchor` of kind
* `cell-range`. Returns `null` for non-finite, unsafe, negative, reversed, or overlong input rather
* than entering an unbounded column-conversion loop.
*/
export declare function formatCellRange(range:ParsedCellRange):string|null;