read-excel-file/commonjs/export/unpackXlsxFileUniversal.js

Read `.xlsx` files in a web browser or in Node.js

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = unpackXlsxFile;
var _unzipFromArrayBuffer = _interopRequireDefault(require("../zip/unzipFromArrayBuffer.js"));
var _convertValuesFromUint8ArraysToStrings = _interopRequireDefault(require("./convertValuesFromUint8ArraysToStrings.js"));
var _filterZipArchiveEntry = _interopRequireDefault(require("./filterZipArchiveEntry.js"));
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
/**
 * Unpacks `*.xlsx` file contents.
 * An `.xlsx` file is really just a `.zip` archive with `.xml` files inside.
 * @param  {(Blob|ArrayBuffer)} input
 * @return {Promise<Record<string,string>} Resolves to an object holding `*.xlsx` file entries.
 */
function unpackXlsxFile(input) {
  return getArrayBuffer(input).then(function (arrayBuffer) {
    return (0, _unzipFromArrayBuffer["default"])(arrayBuffer, {
      filter: _filterZipArchiveEntry["default"]
    });
  }).then(_convertValuesFromUint8ArraysToStrings["default"]);
}
function getArrayBuffer(input) {
  if (input instanceof Blob) {
    return input.arrayBuffer();
  }
  if (input instanceof ArrayBuffer) {
    return Promise.resolve(input);
  }
  throw new TypeError('Unuspported input. Expected a `Blob` or an `ArrayBuffer`');
}
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