Comment by ArsenArsen

I don't think it's much worse than CSV, with it's inflexible structure, not allowing for any formatting to be inserted. As for weird schemas, that really is an implementation specific issue. This example was sketched up in minutes and already reads better than most spreadsheets I've seen over the years!

  <bankstatement>
      <transaction date="2021-08-19" description="Hello, world!">
          <debit commodity="USD">100</debit>
          <balance commodity="USD">237.87</debit>
      </transaction>
  </bankstatement>