Function spliceArray

spec/unit/doc/worksheet-table.spec.js:4–8

(a, index, count, ...rest)

const Excel = verquire('exceljs');

const spliceArray = (a, index, count, ...rest) => {
  const clone = [...a];
  clone.splice(index, count, ...rest);
  return clone;
};

const values = [
  ['Date', 'Id', 'Word'],