@oniryk/xlsx/dist/column.js

A lightweight, efficient TypeScript library for generating single-sheet Excel XLSX files with support for large datasets

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.columnName = columnName;
/**
 * Converts a zero-based column index to an Excel column name
 * Generates column names in the format A, B, C, ..., Z, AA, AB, etc.
 *
 * @param index - Zero-based index of the column (0 = A, 1 = B, etc.)
 * @returns Excel-style column name (e.g., 'A' for 0, 'B' for 1, 'AA' for 26)
 */
function columnName(index) {
    let column = '';
    while (index >= 0) {
        column = String.fromCharCode(65 + (index % 26)) + column;
        index = Math.floor(index / 26) - 1;
    }
    return column;
}