read-excel-file/modules/read/readXlsxFileWebWorker.js

Read small to medium `*.xlsx` files in a browser or Node.js. Parse to JSON with a strict schema.

import xml from '../xml/xml.js';
import unpackXlsxFile from './unpackXlsxFileBrowser.js';
import readXlsxFileContents from './readXlsxFileContents.js';

/**
 * Reads XLSX file into a 2D array of cells in a web worker.
 * @param  {file} file - The file.
 * @param  {object?} options
 * @param  {(number|string)?} options.sheet - Excel document sheet to read. Defaults to `1`. Will only read this sheet and skip others.
 * @return {Promise} Resolves to a 2D array of cells: an array of rows, each row being an array of cells.
 */
export default function readXlsxFile(file) {
  var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
  return unpackXlsxFile(file).then(function (entries) {
    return readXlsxFileContents(entries, xml, options);
  });
}
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