🐛 Bug Report

Hello!
Upgraded to 3.10.0 occasionally (was ^3.9.0) and when trying to read *.xlsm files I got 'unexpected close tag' error. Was not able to track where it goes from the sources.

Lib version: 3.10.0 / 4.0.0

Steps To Reproduce

Reading file from a array buffer like this:

async (buffer: ArrayBuffer) => {
  const workbook = new Excel.Workbook();
  await workbook.xlsx.load(buffer);
  return workbook;
}

Then iterating workbook things like this:

workbook.eachSheet(sheet => {
  sheet.eachRow(row => {
    row.eachCell((cell: Cell) => {

The expected behaviour:

As it was before, xlsm file got read and saved.